VTG Parke Davis Co Detroit Vitamin A B G D Capsules ~ 1935

This is in interesting bottle in that Riboflavin (Vitamin B2) is referred by the name Vitamin G here. It wouldn't be known as riboflavin for a few more years. They knew then that Vitamin B1 required Vitamin B2 and vice versa; they didn't know about the rest of the b-complex yet. Indeed they were just starting to get the idea that there was a complex at all. Niacin had not been discovered yet; pellagra still ravaged the country. An interesting piece of scientific history here, if you know the story. I will pack this securely and send by USPS mail. If you have any questions, please be sure to ask before bidding; I want everyone to be happy with their finds.