Smokers...
I just cleaned and restored a little project yesterday, a late 40's "Delta Beam" TV Antenna. Kool item, made of painted gold metal, bakelite, glass, and black rubber.
From an Estate. Definitely a Smoker, this thing was covered in nicotine. After I disassembled it, cleaned all the various parts, and shooting the steel parts with a fresh coat of god metallic paint, I reassembled it.
It looks fantastic atop my DuMont RA-105B.
LJB