Identifying/Conserving a Kaskara from the late 60s or earlier

[Sajen]

Originally Posted by werecow

Be careful not to overclean with the rust erasers (or with any abrasive really); they come in different gradations of coarseness, and while they feel soft and springy like a pencil eraser, they do remove steel over time.

To remove steel with a rust rubber/eraser would be a challenge!