City letter carrier cap badge, number 11
U.S. Post Office Department City Delivery Service "Heller" cap badge, number 11, with eyelet and cross pin on verso. Elliptical medallion with upper portion marked "UNITED STATES" on ribbon pointing down and lower portion inscribed "MAIL." Numerical figure positioned in center of medallion. Badge patent date: APR.10.88.
The badge shown is an example of a design that did not meet U.S. Post Office specifications but was worn by both rural and city letter carriers during the late nineteenth and early twentieth centuries.