On sale is a set  of  5 pieces 

HART SCHAFFNER & MARX ,

gold tone metal blazer, jacket

replacement buttons, with the iconic HSM design.

Measurements are:

1 piece at approximately 20 mm ( 13/16 inch )

4 pieces at approximately 15 mm ( 9/16 inch )

The measurements are approximate.

This set is in a good used condition.

The fabric label is included with the buttons.