Anyone know what years Slingerland used different P-stamp colors? I just picked up a bunch of re-wrapped Slingy drums from different era's. Most have a really dark black P with clear maple interiors/re-rings and I am assuming are from the 70's due to the sizes (14 inch and 15 inch rack toms). The floor tom I am thinking may be from the 60's because it has a light faded red P stamp and had a COB sticksaver hoop. Just wondering if there is a thread somewhere that has the info on different ink used for Slingy P stamps.
Thanks