Photograph of a man in a laboratory holding a glass beaker, Andrew Brown Chemical Co., Southern California, 1930. "Subject: Laboratory shot; Agency: (deliver to 1142 So[uth] Grand); Client: Andrew Brown Chemical Co., 5431 So[uth] Riverside Dr[ive]; Original print order: 3; Size: 8x10; Finish: gl[ossy]; Year: 1930; Job: 1-6-33" -- on envelope front. "Extra charges: Mr. Hess; Ounces of flash powder: 1/2, .45; Original photographs-Size: 1, (Out of City 15 miles), 5.00; Operator's report (Name): Davey" -- on envelope back.