Posted By:
Kenneth McMillanDo not have one with that stamp, but I do have a W575-1 Elmer Miller Stamped as follows:
R.M. HAYS & BROS.
BOOKS, STATIONARY, KODAK
WALL PAPER & WINDOW SHADES
HAGERSTOWN, MD.
This is apparently a defunct company that sold stationary and postcards in Western Maryland. Probably an owner relative of the company or bored employee.
Kmac