United States: California, San Leandro Physical Description 5.Ĭarl Holm, “Milestones in the Development of Friden.” Location Army from 1942 through 1973, and then joined the Veterans Administration for the rest of his life.Įrnie Jorgenson, Friden Age List, Office Machine Americana, p. Corrado (1917-1984), a native of Covington, Kentucky who earned bachelor’s and master’s degrees in accounting at Catholic University, served in the U.S. This is one of five Friden calculating machines given to the Smithsonian by Vincent L. The date from Ernie Jorgenson would be 1950.
#FRIDEN CALCULATOR EC1113 SERIAL#
The date given is based on the serial number, courtesy of Carl Holm. A mark on the cover reads: Friden Automatic Calculator. feet-inch calculator, solar cell calculator, elsi mate: el376 (el-376) sharp: el376 (version-1) 376: solar cell calculator, elsi mate: el376 (el-376) sharp: el376 (version-2) 376: solar cell calculator, elsi mate: el376a (el-376a) sharp: el376a: 376a: elsi mate, solar cell calculator: el376c (el-376c) sharp: el376c (version-1) 376c: elsi mate. Registers on the carriage have sliding decimal markers and turning decimal dividers between columns of keys. Zeroing knobs for the registers are on the right of the carriage. There are ten numbered buttons under the revolution register as well. Plastic buttons above the result register serve to set up numbers. These are surrounded by further levers and function keys.īehind the number keys is a movable carriage with an 11-digit revolution register and a 20-digit result register.
Below it is a block of nine gray digit keys, with a 0 bar below. On the left is a nine-digit register that indicates numbers entered for multiplication. On the right are two columns of function bars. The capabilities of the Friden STW-10 are quite similar to those of the earlier ST-10, although the exterior design and color are different. Metal rods between the columns of keys and beneath the keyboard turn to indicate decimal places.
The three rightmost columns are gray, the next three tan, the next three gray, and the leftmost tan. This full-keyboard, electric non-printing stepped drum calculating machine has a metal frame painted gray-green and ten columns of gray and tan plastic number keys, with a blank gray key at the bottom of each column.
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