This lot is for three watchmaker polishing compound/powder used with lathe. The Dino lube is a dry lubricant, but has rapid grinding for carbide. Used on All watchmakers diamond charged lap metal lap. It is a fine grit. Watch craft CE Marshall pivot polishing lapping compound. Oilstone powder CE Marshall used to polish harden steel like pivots prior to final polish. Not much used out of any of them.
eBay