Seeking Knowledgealbe Input About This Cancel

Here is a cover with Scott 182, the 1879 one cent American Bank Note Issue in what is apparently the gray blue shade. It bears an interesting oval cancel that says New York CR. While US Railroad Post Offices are circular, old German RPO's (Bahnpost) are oval, so my thinking is that this is an early New York Central Railroad RPO and am wondering if someone with more specialized knowledge of early US postal history or RPO's can confirm that as fact.

BTW, catch Nassau Street on the corner card!

Hi Mod....

I have three books on US cancels and this one is not in any of them. This standard NY oval is quite common but I don't recall ever seeing the CR before. With any luck someone here will be able to help.

While I am no authority on cancels I think it may be common I have a bunch of them with the same cancel mark. BTW I can't see you stamp for some reason.

Here is one of my stamps.



Image: ben.jpg
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Thanks for checking the books, Tom, and your input, mkfarm.