DESCRIPTION: Here is a screwback metal pin that reads, "Foundry and Manufacturers' Supply Assn." The maker's mark is on the reverse and reads "The Greenduck Co. Chicago." It has the numbers 1 and 9 on the area of the mark. The pin is golden in color with a maroon or burgundy red enamel.
DIMENSIONS: The diameter is 7/8 inches or 2.1 cm.
CONDITION OF ITEM: There is some light wear including surface scratching. The screwback works properly. Overall the condition is very good.