Wooden flip-top box; lined with red velvet; two interior racks hold seven individual hydrometesr; each of a very narrow tubular column for 2/3 of length, then flares twice to teardrop form and then to circular form; mercury in circular bulb; then red neck;clear teardrop bulb; narrow column lined wi…
Wooden flip-top box; lined with red velvet; two interior racks hold seven individual hydrometesr; each of a very narrow tubular column for 2/3 of length, then flares twice to teardrop form and then to circular form; mercury in circular bulb; then red neck;clear teardrop bulb; narrow column lined with paper; marked with temperature gradients.
Number Of Parts
8
Part Names
a - box - Size: Length 17.5 cm. x Width 16.5 cm. x Depth 5.0 cm.
b-h - hydrometer - Size:
Provenance
Used to deal with density of petroleum; thermometer floats in petroleum sample to characterize its type / grade.
overall condition fair; box top lifting/separating from rest of lid; top surface of box lid has white paint splatters; red velvet-lined interior worn; one thermometer (e) broken at end of column; #2: one instrument broken