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Can you tell me more about BAHIA cancelation and other cancelations of Brazilian stamps?
I have no more information on that cancel, other than to note that there are other cities that used that style. In that time period, there are boxed style cancels, and ones with just the town name by itself. Many stamps were just cancelled with pen marks. Those are disliked by collectors and so their price is reduced.
Postmarks changed over time so by the time of the engraved portrait issues, called Banknotes, there were a variety of cancels made from wood, rubber corks, etc. Some were just blobs or rounds, but the style could be fancier. Per ones in your collection and:
https://www.stampcommunity.org/topi...IC_ID=17173&The town cancel would normally be struck on just the envelope (to be clear and readable) and the stamp was cancelled by a heavy marking (to prevent re-use). The other United States (USA) did this in the same era, too. In the first scan, please note that the 60r stamp at top is fake; so is the 430r at the bottom; therefore the cancels are fake, also.