Chains
There are a number of different chains including Gunters and an Engineering chain.
EDM, K & E, Ranger 5
Serial No. 07B5012. Made in U.S.A by Laser Systems & Electronics, Inc. An Affiliate of...
EDM, Geodimeter, Model 6
Serial 6571. This instrument is 21" high, 14" wide, 8.5" deep (with scope in vertical...
C.B. Atkins Photograph Collection
Cecil Benjamin Atkins was born in Cork, Ireland on April 9, 1892 and came to...
Calculator, Odhner
Serial No. 39-289679, Desk top mechanical calculator that belonged to Ted Rippon, ALS. It is...
Calculator, Pocket, DIGI-matic
Hand held calculator Simpsons Sears Model Digi-matic 8 Model 41030, S/N 135988. This calculator is...
Calculators, Manual
In 1642, Blaise Pascal is credited with designing one of the earliest forms of a...
Altimeter, E.R. Watts & Son
Brass altimeter, 8 cm in diameter x 3 cm depth with a glass cover. The...
Altimeter, Thommen Everest
Hand held THOMMEN EVEREST pocket altimeter. This altimeter is made of leather plastic and metal...
Altimeter, American Paulin Systems
Altimeter, Micro, Model M-2, s/n NS1201K, with Manual "American Paulin System, Altimetry Manual"