What This "R" Represent？

on cancellation there is a "R"#65292; what the meaning of this "R"#65311; Thank you.

According to David Session's book "The Early Rapid Cancelling Machines of Canada" there were four letters used within the obliterator as follows:
C = Collect - mail picked up at the mail box
D = Drop - mailed at the Post Office
R = Received - miscellaneous letters
T = Transit - mail passing through the post office from an outside point

Sessions goes on to state that "whatever the Canadian Post Office's intent regarding the code, there is little evidence to show that the postmasters adhered to it. Nevertheless, in most offices more than one of the letters was used which suggests they may have had some meaning."

By the way, the cancelling machine was an International distributed by the International Postal Supply Co.

If you would like a copy of this handbook, contact me as I have a spare copy that I would be happy to sell or swap.

GJP

Addendum to my response above:
The letters were used in both Canada and the U.S.A.

GJP

gportch

I've been interested in the Toronto "D" machine cancellations used from 1941 to 1966.



I've posted this article:

http://postalhistorycorner.blogspot...ns-1941.html

This is the only reference to the "D" machine I have been able to find:

A machine cancellation with a capital letter "D" positioned in the centre of a seven wavy line obliterator was used to cancel letters dropped into the letter slot at Toronto Postal Terminal "A". Stokes, A,H., Machine Cancellations of Toronto, Canadian Philatelist, Vol. 10,, No. 5,, 1959, p. 194

Has anyone else written about the "D" machine?

To: gportch & lorddenning
Thank you very much.

Lorddenning,

Very interesting topic.

I'm going to go back to my covers and see if I have any Ds