Not Sure Stamp With Perf Like Holes Znp

Any idea about the holes in these, says ZNP

This is a Perfin stamp. I believe Perfin is short for Perforation Initials. Back in the day, companies often punched their stamps with their initials. I believe it was done as a form of advertisement, but I'm not sure. It looks like your stamp is still affixed to paper - is it still on the envelope? If it is, you may be able to associate the perfin initials to the return address. There are Perfin collectors, and some stamp collectors avoid them like the plague. Personal preference.

I thought the idea behind perfins on postage stamps was to deter theft by employees.

pcerio you are correct in what you said, theft deterrent.

Can we see the entire card?

Perfin ZNP (Late use)

Zwiazek Narodowy Polski 1908 -1926
Chicago Illinois

Guess: National Polish Association.

Thanks for the input. I thought both of those things also I just couldn't find any info or examples. It is Polish Alliance.

Give that man (Rod) a Cigar, nailed it :)

Yes he did. Now that I found this site I will go thru my other stamps and see if I can find anything interesting. I know more about coins so I am going to check out the coin side, maybe I can help someone there.
Thanks