B. HELLER & Co.
ZANZIBAR SPECIAL "B"
5 LB SPECIAL "B" (Panel roughly: 8-1/2" x 6-1/2")
SPECIAL "B" Directions, copyright 1949 (Panel roughly: 8" x 4-3/4")
The Plan Behind The Product (Panel roughly: 8" x 5")
Mounted on (Looks like "ORIGINAL BOARD") roughly: 16-5/16" x 8-7/16"
Plate thickness: roughly 3/16"
Material: Unknown, will not guess.Circular machine marking noted.
Surface of item to be printed clean, no physical damage.