1313. A Dayton Fan and Motor Company Variometer, used for tuning old radios:
1314. A toolbox for an electronics technician, the compartments in the lid are for storing tv and radio tubes.
These next four were submitted by visitors of this site:
1315. This was found at a garage sale and was sent in by someone looking to find out what it was, one of my friends recognized it as an outdoor propane heater.
1316. A Challenge Hempel Quoin, used in pairs to wedge a page of set type into the chase for printing.
1317. A quoin key, used to tighten or loosen the quoin.
1318. This tool was used to restore the threads on the zinc lids of glass jars.
1319. An automatic bookmark, it's clipped onto the back cover of a book with the pin placed between the pages to mark your place, patent number D163572.
Take a look at Neatorama for more guesses on this device.
To submit photos, click on the profile link at the upper right to find my email address.
Last week's set is seen below, click here to view the entire post:
Black Ops Pro Tips
More discussion and comments on these photos can be found at the newsgroup rec.puzzles.