Born-Digital or AnalogAnalogTranscriptPostal service, Denver Postmen carried guns in 1879. RMN Apr. 22, 1934 D p.2 First mail route carrier served only three weeks. RMN Apr. 22, 1934 D p.2 Postal receipts gain. RAN Ja 1, 1935 p.10 Map showing zones for 2 & 3 cent postage in and around Denver. REN F 10, 1935 p.4 New 6 year record is set at Post Office. Post D 26, 1936 p.1 Procedure etc. RMN Ja 1, 1939 P.3 Sec-3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng