It was sad to see a 1930s Pinball machine held together with old, dried duct tape. People, please! Duct tape is for just that—ducting.

I used some Goof Off and soaked it for a few minutes, then carefully used a plastic razor-blade and a metal razor-blade to scrape the nasty off. Then used more Goof Off for clean up. Then used Linseed Oil for the final shine and restore. Turned out great!