Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Interior view: a man is standing in a room next to tables on which there are large jars and a piece of equipment with a fan belt; air vents are in the ceiling; lighting is recessed; the room is in front of windows to the outside.
Copyright:
The National Library of Medicine believes this item to be in the public domain. (More information)
Extent:
1 photographic print : image 19 x 23 cm. mounted on sheet 23 x 35 cm.