I have sanded the interior for re-painting because the interior was yellowed and stained from years of exposure to no resonance head in smoky clubs and bars. This is a player's drum that was nested, so these pics are from the batter side. The original owner said he purchased the kit in 1965 from a music store, but I suspect that the drum is from a number of years earlier. I don't trust my eyes, so here's how we play the game:

Your choices are:

1) 3 ply shell with 3 ply re-ring

2) 4 ply shell with 4 ply re-ring

3) 6 ply shell with 6 ply re-ring

I have included profiles of the bearing edge and the Re-ring for your general information and enjoyment.

Once I obtain a decent protractor I will be able to measure the bearing edge angles somewhat.

I think I see a 3 (thin) ply shell plus a three (fat) ply re-ring. Please let me know what you think.

Thank you all!