in very good condition kern aarau GKO level ,inverted image to use or to complete your collection in original plastic box has a few cracks (see photo) , instrument is fully serviced and callibrated If

 

Pair of Compasses 1Engineers Directional Compass 1 Silva Sweden See photos for size information Pair of compasses - the all black one is an Engineers Directional Compass the other with mirror is made

 

From what I've read these are some kind of quackery that was produced to help piano students learn to play. It had a short run of production in 1888. Neither is complete, but there are enough part bet

 

Offered here is an anemometer with the original leather case. Anemometer marked as being manufactured by Taylor - National Mine Service company. Measures 4.25" diameter. In working condition. A strip

 

Brass Van Cort “Companion” Pocket Kaleidoscope Up for auction is a Brass Van Cort “Companion” Pocket Kaleidoscope. In very nice condition, comes with original box. Measures 5 1/8" in length. �

 

Old BARIGO pocket barometer, made in Germany in excellent condition. 2 1/4 in. across X 3/4 in. thick. No scratches in top see through covering. The barometer case bottom has a few hardly noticeable h

 

This kaleidoscope is "Rainbow" by Randy and Shelley Knapp. This scope was a part of the Knapp's personal collection and has recently been completely refurbished by Randy and Shelley. This scope has a

 

SELLING AS SHOWN THIS VINTAGE BAROMETER THAT'S SHAPE IS A NAUTICAL SHIP WHEEL...MADE IN WESTERN GERMANY...11" DIAMETER... PLEASE LOOK AT MY OTHER AUCTIONS AND EMAIL ANY QUESTIONS YOU MAY HAVE....FROM

 

Qty. 6 Vintage Justrite Jewel Tips 5-128 for brass carbide mining lamps. In original box which is old, yellowed, fragile, has 2 short end flaps on the box missing and has an old price wrote on it by h

 

Vintage Pickett N 3-ES SLIDE RULE Power Log Exponential Dual Base in Hard Lined Leather Case. This slide rule is in very good to excellent condition, no major issues of any kind, straight, good corner