Box top reads, "Connaught Penicillin G. Procaine in Oil Crystalline (with Aluminium Monostearate 2%) 3,000,000 International Units (300,000 I.U. per cc.) // 10 cc. // Connaught Medical Research Laboratories // University of Toronto, Toronto, Canada"; sides read, "Penicillin G Procaine in Oil // 10 cc. // Lot 81-1// Expiration Date Jan. 17, 1954" and "Penicillin G. Procaine in Oil //10 cc. // Can. Lic. No. 3 // Code: Dawn"