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Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
Accession Number
000006025 a-c
Description
The balance is attached in a case, and would be used for weighing rather small amounts; placed on a marble slab are two identical sample/weight pans of metal, a metal weighing pan, a scale, and a level window made of metal and glass; other parts, such as a beam and the central pivot, are enclosed i…
  3 images  
Accession Number
000006025 a-c
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
MeSH Heading
Weights and Measures
Pharmacy -- instrumentation
MM= Drug Compounding -- scales
Description
The balance is attached in a case, and would be used for weighing rather small amounts; placed on a marble slab are two identical sample/weight pans of metal, a metal weighing pan, a scale, and a level window made of metal and glass; other parts, such as a beam and the central pivot, are enclosed in a wooden box under the marble slab and are not visible; a wooden box with a glass top panel is attached to the marble slab with two hinges at one edge; this top cover protects the parts above the marble slab when the scale is not in use; each sample/weight pan is concave and is supported by a vertical rod that must be connected to the beam in the wooden box; each pan has a long projection pointing to the centre of the instrument; the tip of this pointer is painted black and it moves up and down in front of the scale that is placed mid-way between the two pans; the scale is a flat, rectangular piece of white natural product (ivory?); it is rounded at the top edge, is graduated in black, and is held upright with a metal bracket and four screws, on the marble slab, behind the two pointers extending from the pans; the end of the bracket on the marble slab is connected to a level window behind the scale; the level window is a cylindrical metal dome; between the metal dome and the marble slab is enclosed a glass capsule containing water and an air bubble; two legs on the instrument on the right side of the viewer are screws held by nuts protruding from the side of the instrument; by rotating these two screws, the level of the instrument can be adjusted; two other legs on the left side of the viewer are wooden; a knob at the front centre of the lower wooden box is a beam stopper; when in use, the beam is released by rotating the knob in one direction, and when not in use, the beam is held securely by rotating the knob in the other direction (to protect the beam from damage caused by vibration); there is a trace of a rectangular tag that was once attached on the front centre of the upper wooden cover; there is also a trace of an oval tag that was once attached on the reight front of the lower wooden box; there are two screw holes on the left front of the lower wooden box; the two tags and six screws are missing; on the back of the lower wooden box, at the centre, an end of a metal shaft projects about 2 mm; around the end of the shaft, a metal ring is attached to hold a sign; the weighing pan, used to hold samples or weights during measurement, is a concave metal disk that is placed on the marble slab at the centre.
Number Of Parts
3
Part Names
a - case - Size: Length 19.8 cm x Width 34.1 cm x Depth 15.9 cm
b - pan - Size: Length 13.8 cm x Width 5.0 cm x Depth 3.0 cm
c - pan - Size: Length 13.8 cm x Width 5.0 cm x Depth 3.0 cm
Provenance
Owned by Jack Willson
Material
metal: silver; yellow
glass: clear
ivory (?): cream
marble: white
wood: brown
Inscriptions
The sign on the metal ring tag on the back reads, "PENNA&N.Y.APPDTYPE 1Y // SERIAL W2"; on the back of each sample/weight pan, a "5" is engraved where the pointer joins the disc.
Permanent Location
Storage Room 0007
0007-A2-3
Condition Remarks
When donated, objects 000.006.026-.030 were placed inside the cover of this item; the beam (below the marble slab, not visible) and the beam stopper work smoothly; minor corrosion on metal parts; numerous minor losses and discolouration on wood and marble; dirty with brown/black residue;
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
"Catalog of Laboratory Apparatus and Scientific Instruments JC-141," Central Scientific Company of Canada Ltd., 1942, p. 31 (similar to item 7450) (please see attached photocopy); CD #3
Research Facts
This was approved by authority for accurate measurement.
Images
Less detail

half-drachm weight

https://mhc.andornot.com/en/permalink/artifact4376
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
Accession Number
000006027
Description
Weight, which is a flat, round coin-shaped piece of metal; there are raised marks on both sides.
  1 image  
Accession Number
000006027
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
MeSH Heading
Weights and Measures
Pharmacy -- instrumentation
MM= Drug Compounding -- scales
Description
Weight, which is a flat, round coin-shaped piece of metal; there are raised marks on both sides.
Number Of Parts
1
Provenance
Owned by Jack Willson
Material
metal: brown
Inscriptions
At the centre of a round side,a mark reads, "[weight symbol resembling a large "3"] ss [superscr.]"; below this there is an "M" inside a diamond shape; the text surrounding the first mark reads, "HALF DRACHM"; the text on the left of the diamond reads, "PHILA." and on the right, "& N.Y."; short, radiating grip lines are aligned along the perimeter that is also raised; all marks are raised; the edge of the weight is smooth.
Permanent Location
Storage Room 0010
0010-F8-5
Dimension Notes
Depth 0.1 cm x Diam. 1.6 cm
Condition Remarks
Has several spots of green corrosion and black tarnish.
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
"Catalog of Laboratory Apparatus and Scientific Instruments JC-141," Central Scientific Company of Canada Ltd., 1942, p. 40 (similar to item 8910) (please see attached photocopy); "Dorland's Illustrated Medical Dictionary," 25th ed., W.B. Saunders Co., 1974, p. 1731; CD #3
Research Facts
This was approved by authority for accurate measurement in Philadelphia and New York, as inferred from the marks; one drachm is one dram, one drachma, or about 3.9 g; the weight symbol represents the weight unit, drachm.
Images
Less detail

one-scruple weight

https://mhc.andornot.com/en/permalink/artifact4377
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
Accession Number
000006028
Description
Weight, which is a flat, round coin-shaped piece of metal; there are raised marks on both sides.
  1 image  
Accession Number
000006028
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
MeSH Heading
Weights and Measures
Pharmacy -- instrumentation
MM= Drug Compounding -- scales
Description
Weight, which is a flat, round coin-shaped piece of metal; there are raised marks on both sides.
Number Of Parts
1
Provenance
Owned by Jack Willson
Material
metal: brown
Inscriptions
At the centre of a round side,a mark reads, "[weight symbol resembling a backwards "e"] i"; below this there is an "M" inside a diamond shape; the text surrounding the first mark reads, "ONE SCRUPLE"; short, radiating grip lines are aligned along the perimeter that is also raised; all marks are raised; the edge of the weight is smooth.
Permanent Location
Storage Room 0010
0010-F8-5
Dimension Notes
Depth 0.1 cm x Diam. 1.4 cm
Condition Remarks
Slightly tarnished with a greyinsh overall colour; there are several green corrosion spots and spots of black tarnish.
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
"Catalog of Laboratory Apparatus and Scientific Instruments JC-141," Central Scientific Company of Canada Ltd., 1942, p. 40 (similar to item 8910) (please see attached photocopy); "Dorland's Illustrated Medical Dictionary," 25th ed., W.B. Saunders Co., 1974, p. 1731; CD #3
Research Facts
One scruple is about 1.3 g.
Images
Less detail

two-scruple weight

https://mhc.andornot.com/en/permalink/artifact4378
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
Accession Number
000006029
Description
Weight, which is a flat, rectangular thick piece of metal.
Accession Number
000006029
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
MeSH Heading
Weights and Measures
Pharmacy -- instrumentation
MM= Drug Compounding -- scales
Description
Weight, which is a flat, rectangular thick piece of metal.
Number Of Parts
1
Provenance
Owned by Jack Willson
Material
metal: brown
Inscriptions
Text is engraved on both sides; on one side, it reads, "2 // Scruple"; on the other side there is a weight symbol, resembling a cursive "F" and a "y" with an umlaut (see accession sheet for sketch).
Permanent Location
Storage Room 0010
0010-F8-5
Dimension Notes
Length 0.9 cm x Width 1.1 cm x Depth 0.3 cm
Condition Remarks
Has several spots of green corrosion and a brownish tarnish overall.
Copy Type
Original
Reference Types
Book
Reference Comments
"Catalog of Laboratory Apparatus and Scientific Instruments JC-141," Central Scientific Company of Canada Ltd., 1942, p. 40 (similar to item 8910) (please see attached photocopy); "Dorland's Illustrated Medical Dictionary," 25th ed., W.B. Saunders Co., 1974, p. 1731
Research Facts
One scruple is about 1.3 gm.
Less detail
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
Accession Number
000006030
Description
Weight, which is nail-shaped, with a head that is an oval shape; the stem is round near the head and rectangular at the end; unlike a real nail, the end is not pointed.
  1 image  
Accession Number
000006030
Collection
Mr. Jack Willson Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
MeSH Heading
Weights and Measures
Pharmacy -- instrumentation
MM= Drug Compounding -- scales
Description
Weight, which is nail-shaped, with a head that is an oval shape; the stem is round near the head and rectangular at the end; unlike a real nail, the end is not pointed.
Number Of Parts
1
Provenance
Owned by Jack Willson
Material
metal: brown
Inscriptions
None
Permanent Location
Storage Room 0010
0010-F8-5
Dimension Notes
Length 2.1 cm x Width 0.6 cm x Depth 0.4 cm
Condition Remarks
Covered with a rough, brown coating of rust; there are several white spots
Copy Type
Original
Reference Types
Other
JPG
Reference Comments
See also items 000.006.025-.029; CD #3
Images
Less detail