Mystery tools - what the heck are these things

No clue on that press thingy... But could the first item be some sort of guage? Something that is passed through or has something passed through it to see what tolerances the user is getting?

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Item #1 looks like some type of a high-class scraper blade.

Item #2 I have no idea, other than it appears to me to be some sort of a hole punch for a specific application..

Item #3 This appears to fall into the size category of what we once (pre-transistor era) called 'Hearing Aid Tubes'. Some variants of this type tube found their way into the "VT Proximitiy Fuzes" used on large AA artillery shells by the military. The mystery to me is that I remember these tubes as somewhat flattened, but your's appears to be cylindrical. (For what it's worth, many if not most of the VT Proximity Fuzes were manufactured at Eastman Kodak's Lincoln Avenue plant in Rochester, NY.)

Harry C.

The first one looks exactly like a carbide scraper blade. Given the text, one could suppose that it's intended for precison metal scraping. I'm very happy with the one I have (just marked Sandvik, and with the holder) for paint, etc. scraping, but suspect it would work perfectly well on metal as well. Clamps in a holder, scrape until one edge dull, flip, scrape until other edge dull, replace or sharpen (diamond stone).

It looks like a paint film thickness gauge. A sample of paint is placed on a smooth test surface, and "squeegeed" out to a known wet thickness. After the paint drys, the resulting film is mic'd for thickness, and a figure of merit of solids content is created from the ratio of wet to dry thicknesses.

LLoyd