A Collection of Circular Slide Rules and Calculators. See photos for what is included. All are in very good condition except the Range Computer which has 3 internal cracks in the back plastic disk. So

 

steverr1 Store 4312 Land O' Lakes Blvd. Land O' Lakes, FL 34639(813) 996-1787 THIS AUCTION IS FOR Naudet 7162 Mahogany Barograph!OUTSTANDING INSTRUMENT!PLEASE READ TO MAKE THIS A GREAT TRANSACTION FOR

 

WOW, I DON'T KNOW WHO THESE ARE MADE BY BUT THEY ARE COOL LOOKING. THICK AND THE COLORING OF THE TORTOISE SHELL PATTERN IS VERY NICE!! THE FRONT AND SIDE FRONT EDGES HAVE AN ELONGATED TRAPEZOID THAT L

 

Bird Electronics VSWR Slide Rule, (Voltage-Standing-Wave-Ratio) I will combine postage on Multiple Purchases. I charge actual shipping charges. Be sure to add me to your favorites list! Check out my o

 

no problems,nice condition,marked Aug 14,1917 John Bull 2- 1/2 in tall

 

Vintage Soviet Russian Binoculars BPC 10x50 TENTO original leather caseFor sale is BPC 10x50 Russian binoculars Tento' SpecificationsLens diameter [mm]50Magnification [x]10Angular field of view [deg]5

 

This safety lamp was my fathers.He worked at Helen Mine local 1619 district 2 umwa.In Homer city Area/Graceton Coral Area of Indiana County Pa 15748.He said he was issued this lamp in 1979/1980.It is

 

spantime Store Vintage French POCKET BINOCULARS / COMPASS AND SIGNAL MIRROR Prev Stop Play Next PLEASE NOTE THE FOLLOWING PAYMENT METHODS ACCEPTABLE TO US ARE: UK BUYERS - we will accept cheques drawn

 

Vintage Dietzgen Surveyor's Tripod. 57 3/4" tall, 5 3/4" wide. 3 9/16" thread diameter. Brass top and threads in very good condition. Leg wing nuts and bolts in good working order. Thread covers in ex

 

Very Old Bell System First Aid Kit Nice heavy metal container with handle. Good vintage condition ... see the photos. Hinges and hardware work fine. No significant dents. Paint worn as seen in the pho