Mail matter. Cost ascertainment: Instruction letter M [Sept. 23, 1929], Record of revenue, pieces, and weight of mail transported on domestic and foreign contract air-mail routes.

Publication Title:
Mail matter. Cost ascertainment: Instruction letter M [Sept. 23, 1929], Record of revenue, pieces, and weight of mail transported on domestic and foreign contract air-mail routes.
Display Title:
Mail matter. Cost ascertainment: Instruction letter M [Sept. 23, 1929], Record of revenue, pieces, and weight of mail transported on domestic and foreign contract air-mail routes.
Corporate Agency Authors:
Post Office Department
Sort Author:
Post Office Department
Date:
[1929.]
Publish Date ISO Format:
1929-01-01T00:00:00Z
Publication Start:
19290101
Publication End:
19291231
Corporate/Agency Author:
Post Office Department
Publication month:
13
Publication year:
1929
SuDoc number:
P 4.5:M
Description:
6 p.
Notes:
‡ Official Use. Not Available.
Availability:
‡ Official Use. Not Available.
Monthly Catalog date:
September 1929
Monthly Catalog issue number:
417
Monthly Catalog page number:
1
Monthly Catalog issue date:
1929-09-01T00:00:00Z
Record start page number:
175

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