We finally had a hot spell out here with multiple consecutive days over 100 degrees and I took the opportunity to use my "solar cosmo remover".
What I found under all that grease was a pleasant find: full C stock, HS barrel gauging a bit less than "1" on the CMP muzzle gauge, bolt wouldn't close on a field gauge, and metal finish in great shape.
A few oddities--bolt with numbers ep'd on the handle
Partial serial number stamped on the buttstock
few odd cartouches on the stock