Source: Business letterheads Location: Archives
Business Name:	Erker Bros. Optical Company
Building Illus:	Yes
Address:	608 Olive St.
Type of Business:	manufacturers of optical & mathematical instruments, field & opera glasses, photographic cameras, artificial human eyes
Date:	1896-1918
Lithographer, Engraver, Printer:	Frederick Print
Collection:	A0214
Items:	3