This listing is for a Vintage Lapel or Hat Pin / Tie Tack: SCHRAMM Machine Gold Tone. This item is pre-owned. Please see photos for details.
Schramm, Inc. is a company founded in 1900 in Philadelphia that became known for manufacturing air compressors and, later, drilling equipment.
The pin represents one of their early portable engine-driven air compressors, a product the company developed in the early 1900s. The pin was likely a promotional or commemorative item given to employees or clients. Schramm, Inc. records mention the existence of artifacts like commemorative cufflinks and tie pins.
It is a stick pin design with a chain leading to a T-bar closure, common in vintage men's jewelry.