U.S. Post Office Department City Delivery Service cap badge, number 8492, with eyelet and cross pin attachment on verso. Spread eagle supporting a U.S. shield surmounts elliptical medallion with upper portion marked "U.S. POST OFFICE" and lower portion "CHICAGO, ILL" in japanned raised block letters.
Shown is a service badge that met department specifications, worn by a Chicago, Illinois, letter carrier after 1922. The badge is made of German silver, a metallic element containing copper, zinc, and nickel. The Post Office Department chose this metal because of its hardness and resistance to corrosion, an important consideration since the letter carrier's work constantly exposed the badge to harsh and fluctuating weather conditions.
| Date | 1922 |
| Associated Organization | City Free Delivery Service |
| Manufacturer | N. C. Walter and Sons |
| Place | United States of America |
| Medium | metal (German silver) |
| Dimensions | Overall: 5.4 x 6.4 x 1.3cm (2 1/8 x 2 1/2 x 1/2in.) Height x Width x Depth (Fastening Pin): 2.1 x 2.5 x 0.5cm (13/16 x 1 x 3/16in.) |
| Object number | 1986.0482.1 |
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