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2171. Mail matter. Cost ascertainment: Instruction letter E [July 1, 1939], Incoming mails from foreign countries and United States Territories and possessions.

Corporate/Agency Authors:: Post Office Department
Publisher:: Post Office Department
Date:: [1939.]
SuDoc number:: P 4.5:E/13

2172. Mail matter. Cost ascertainment: Instruction letter F [July 1, 1939], Time studies and expenditures, 1stand 2d-class post offices.

Corporate/Agency Authors:: Post Office Department
Publisher:: Post Office Department
Date:: [1939.]
SuDoc number:: P 4.5:F/19

2173. Mail matter. Cost ascertainment: Instruction letter L [July 1, 1939], Measurement and apportionment of floor space.

Corporate/Agency Authors:: Post Office Department
Publisher:: Post Office Department
Date:: [1939.]
SuDoc number:: P 4.5:L/12

2174. Mail matter. Cost ascertainment: Instruction letter R [July 1, 1939], Railway Mail Service distribution and tests.

Corporate/Agency Authors:: Post Office Department
Publisher:: Post Office Department
Date:: [1939.]
SuDoc number:: P 4.5:R/17

2175. Mail receptacles. Apartment-house mail receptacles, regulations and instructions.

Corporate/Agency Authors:: Post Office Department
Publisher:: Post Office Department
Date:: [1939.]
SuDoc number:: P 2.2:AP 1/2/939

2176. Mail routes. Schedule of mail routes, no. 526, Mar. 14, 1939, 3d division, Railway Mail Service, comprising District of Columbia, Maryland, North Carolina, Virginia, and West Virginia (except peninsula of Maryland and Virginia).

Corporate/Agency Authors:: Railway Mail Service and Post Office Department
Publisher:: Railway Mail Service
Date:: [1939.]
SuDoc number:: P 10.12/3:526

2177. Mail routes. Schedule of mail routes, no. 526, Mar. 9, 1939, 7th division, Railway Mail Service, comprising Kansas and Missouri.

Corporate/Agency Authors:: Railway Mail Service and Post Office Department
Publisher:: Railway Mail Service
Date:: [1939]
SuDoc number:: P 10.12/7:526

2178. Mail routes. Schedule of mail routes, no. 527, June 22, 1939, 7th division, Railway Mail Service, comprising Kansas and Missouri.

Corporate/Agency Authors:: Railway Mail Service and Post Office Department
Publisher:: Railway Mail Service
Date:: [1939]
SuDoc number:: P 10.12/7:527

2179. Mail routes. Schedule of mail routes, no. 527, May 16, 1939, 3d division, Railway Mail Service, comprising District of Columbia, Maryland, North Carolina, Virginia, and West Virginia (except peninsula of Maryland and Virginia).

Corporate/Agency Authors:: Railway Mail Service and Post Office Department
Publisher:: Railway Mail Service
Date:: [1939.]
SuDoc number:: P 10.12/3:527

2180. Mail routes. Schedule of mail routes, no. 528, Aug. 15, 1939, 3d division, Railway Mail Service, comprising District of Columbia, Maryland, North Carolina, Virginia, and West Virginia (except peninsula of Maryland and Virginia).

Corporate/Agency Authors:: Railway Mail Service and Post Office Department
Publisher:: Railway Mail Service
Date:: [1939.]
SuDoc number:: P 10.12/3:528

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