50 Gram tube of Simichrome Polish, excellent for polishing metals, plastics, among other items.
It is also used as one of the positiive tests for Bakelite/Catalin.
I personally have used it to clean and remove marks from tin toys, tins, signs, ACL bottle labels, and such.
NOTE: Apparently, the company has changed the formula, and the new formulated product no longer works as a test for Bakelite. These tubes are the original formula.