Metropolitan
Air Post Society



At the Edges of Confusion aka '1926 combination mail' - Page 9


A very Sesquicentennial 'confusion cover' with lots of confusion
- including confusion on forwarding to the transcontinental route and confusing rate variations.

13S1 cover, Philadelphia-Washington
with 24¢ postage that includes two 2¢ Sesquicentennial Liberty Bell stamps.
Printed cachet depicting eagle on American flag and five lines of text in box, cachet 13a superimposed.
Postage defaced at Model Post Office with machine cancel and two copies of duplex cancel,
all with ' Model Post Office Sesquicentennial International Exposition' in killers.
Addressed to Enumclaw WA [20 miles east of Tacoma].

Comments

Three 1926 domestic routes did not connect to the
transcontinental route- CAM-13, CAM-15 and CAM-10.
No postal reference has been found identifying combination rates
applicable to air mail from these three routes.
See next page for source of data in tabulation at left.
Our interpretation of this data indicates
combination air mail originating on not-connected routes
would go by train [egg Washington-NY, and be forwarded by air from NY.
However, there are known instances when mail from Florida, intended to
go west via the Transcontintental would go via Chicago rather than NY.
If mail from CAM-10 went via Chicago rather than NY, one less zone
would be involved and the rate could vary from CAM-13 / 15 mail.
Thorough discussion of the rate possibilitie sapplying to the did not
connect routes would involve a short chapter in a handbook.

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Updated 1 February 2006
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