Vintage “75 BRISTOL” brass-tone commemorative pin presented on its original Bastian Bros. Co. of Rochester, New York display card. The small badge features a raised 75 above the word BRISTOL, surrounded by a textured field and gear-like scalloped border.

The exact Bristol organization represented by the pin is not identified on the surviving card, so I would avoid describing it definitively as a labor-union pin without additional documentation. The “75” most plausibly represents an anniversary, membership, service, chapter/local, or organizational milestone.

Details
Maker: Bastian Bros. Co.

Origin: Rochester, New York, USA

Item: “75 BRISTOL” commemorative / service-style pin with original presentation card

Design: Circular medallion with raised “75 BRISTOL,” textured center and scalloped gear-form border

Approximate Age: Circa 1940s–1950s

Dimensions: Approx. 11/16"

Materials: Brass or brass-finished base metal / paperboard presentation card

Fastener: Rear post-style attachment with metal keeper

Color Palette: Aged Brass / Cream / Navy Blue

Design Styles: Americana / Mid-Century / Corporate Ephemera / Exonumia / Industrial Advertising / Service Award

Condition
Vintage condition with original presentation card.
The pin retains an attractive aged brass finish with surface patina, oxidation, darkening, and minor handling wear consistent with age. Raised lettering and numerals remain crisp and readily legible.
Original Bastian Bros. presentation card shows substantial age toning, foxing/spotting, creasing, edge wear, softened corners, and a folded/creased upper-right corner. The reverse also shows age discoloration and creasing. Pin remains attached to the card.
Please review photographs closely for exact cosmetic condition.