Posting from the usenet newsgroup rec.crafts.metalworking as always. (Also, my living room, for Stormin' Moron. :-)
3163) Well -- it serves to measure the angle of surfaces from the horizontal or the vertical. The calibration is in degrees, though the markings appear to be in some other language than English. Possibly Italian? The markings "D.T.", "DISTANZI" and "ADVANTI" and I can't make out the markings more distance from the end. 3164) Shock mount for shipping sensitive electronics equipment, usually used in sets of four to mount the equipment to the inside of the shipping crate -- or on sets of eight if used on both top and bottom instead of just bottom. 3165) This is a keyboard and press/punch for embossing Braille letters into plastic or paper -- probably paper, given the apparent age of it -- and the lack of a mechanism for indexing the paper or plastic to space the letters in a straight line.I'm not sure how the paper or plastic is to be held down. With paper, likely just by thumb pressure.
3166) This one looks sort of like a universal clock winding tool. 3167) A strange thing. I could see it being used to unscrew jar lids -- but I'm not sure about the turret with the various widths of projections -- perhaps to fit into lock rings of some sort, with one flat position for normal un-notched rings (or jar lids). 3168) This one, if screwed to a wall or the edge of a countertop could be used either to grip a jar lid -- including puncturing the edge for better grip -- or it could walk around the edge of of a can cutting the top -- and the rim -- loose from the body of the can. Thus it would leave the can rather flexible and harder to grip. And -- it appears to fit only one diameter of can -- a fairly large one from the looks of it.Now to post and then see what others have suggested.
Enjoy, DoN.