Author Archives: Ed Titanich
Chain, Gunter’s
The Gunter’s Chain, designed in England by Edward Gunter in 1620. It was one chain...
C.B. Atkins Photograph Collection
Cecil Benjamin Atkins was born in Cork, Ireland on April 9, 1892 and came to...
Calculator Manual, Odhner
Serial No. 39-289679, Desk top mechanical calculator that belonged to Ted Rippon, ALS. It is...
Computers 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"
Altimeter, Topley
This altimeter is marked “No. 8070, Compensated, The Topley Company, “D.L.S. special.” It comes with...
Altimeter, Short & Mason
F.2453. This altimeter is calibrated in feet and inches of mercury. Pocket watch style brass...