From estate comes this collection of rulers , most are wood . Some metal , a few plastic . All kinds , some three sided , a slide rule . Some with advertising on them , some don't . All in good condit

 

this is a nice looking brass instrument, i think its a sextant, it has some kind of small telescope attachment as seen, various coloured folding glass things or filters. it is marked C PLATH HAMBURG,

 

Five drafting pens from the early 20th century. The one of the far left may be mid 20th century. The one on the far left and the one second from the right are marked KEUFFEL & ESSER. Second and th

 

Precision Slide Rule Faber Castell NOVO-BIPLEX 2/83 N Made in Germany WITH CASE!In good used condition, shows some wear from normal use and some discoloration. Nothing to take away from function. Come

 

Vintage, Antique Bausch & Lomb Binoculars black with case. U.S.A. Pat. Des. 83585. It has a strap and case. I do not know what year or Magnify. Please inspect all the photos up close or ask questi

 

RARE * VINTAGE * METEOROLOGICAL * VIZ A.I.R. INC. RADIOSONDE * USED * NOT TESTED MODEL IS-4A-1680CARRIER FREQUENCY 1690.000 MHz USED, NOT TESTED SEE PICTURES

 

Vintage coal miner's, carbide hat lamp. Patented in 1916 by Universal Lamp Co. Very Good condition. "It's Trouble Proof"

 

THIS IS A VINTAGE PAIR OF OPTICIANS EYE TEST SPECTACLE FRAMES,THEY ARE MARKED THE CROYDONIAN,THEY LOOK TO BE COMPLETE AND WORKING BUT HAVE SOME WEAR. IF YOU HAVE ANY QUESTIONS PLEASE EMAIL ME,I DO COM

 

You're bidding on a Taylor Fishing Guide Barometer model # 2280F on the box in very, very good working order condition. Sale includes barometer, lower half of original box with model number imprinted

 

This is a newly crafted vintage style tumble chamber kaleidoscope created in my studio in the Black Hills of South Dakota. It is a one of a kind cast solder and art glass dry chamber kaleidoscope. As