i was hunting with John Serniak when we stumbled upon an open mine. i went in a few feet and snagged this little spool. it says "P.P.'' on it that we can tell but other than that the rest is a mystery. has anyone else found anything like this or know a possible value? it appears to be a high quality dry process

Thanks Steve Lohr for helping me ID this spool as a P.P. No. 36.