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1651. Approximately 5" long, take a look at Neatorama for more guesses on this one:
1652. 2" long, submitted by visitor who is looking to find information on this piece:
1653. 14" long:
1654. 2-3/4" diameter:
A view of the inside:
1655. 6-3/4" long, this set of unidentified instruments was found in Yugoslavia and was sent in by a visitor who would like to know how they were used:
The top four are labeled 32, 30, 23 and 19. Each of them has a small rotating geared wheel at the tip. The largest wheel is on the #30 instrument, the #23 is smaller, and the #19 is smaller that the #23. The top one, #32 is somewhere in-between, and is configured differently, looking somewhat like a pen. The tool at the bottom has a point on one end and a small ball on the other.
The increments are 1/16":
1656. Around 2" long:
To submit photos, send them to the address in my profile.
Last week's set is seen below, click here to view the entire post.
More discussion and comments on these photos can be found at the newsgroup rec.puzzles.