1934 American Society of Photogrammetry Sterling Silver Membership Pin

Description

1934 American Society of Photogrammetry Sterling Silver Membership Pin
Here's a real beauty that is in excellent as found condition. The pin works as intended.
Marked on the back: Sterling and a manufacturer logo which I can't make out.
Measures 1/2" by 7/8".
Shipped via USPS First Class Mail with delivery confirmation.