DATAMATH CALCULATOR MUSEUM
WG&L incotax calculator by Texas Instruments
|Date of introduction:||1981||Display technology:||LED-stick|
|New price:||Display size:||10 (8 + 2)|
|Size:|| 6.4" x 3.2" x
162 x 81 x 37 mm3
|Weight:||8.5 ounces, 240 grams||Serial No:||4249533|
|Batteries:||BP1A||Date of manufacture:||wk 05 year 1981|
|AC-Adapter:||AC9131||Origin of manufacture:||USA (ATA)|
|Precision:||13||Integrated circuits:||TMC0501E, TMC0591, CD2400, CD2401 TMC0573, TC5047|
|Program steps:||480-0||Courtesy of:||Joerg Woerner|
innovative TI-58 was the perfect base for a lot of
customized calculators. The idea behind these products
was the novelty of the
Solid State Software Modules™ with up to 5000 program steps.
The incotax application was developed by the Bureau of National Affairs, Inc., Washington D.C. to calculate Federal Income Taxes and distributed by Warren, Gorham & Lamont, Valhalla NY (WG&L).
Dismantling the tax planner calculator reveals a standard TI-58C calculator manufactured in February 1981.
We know a WG&L incotax calculator with a slightly different keyboard design.
Gorham & Lamont, Valhalla NY was founded in the 1950s, but traces its roots
back to 1882, when Willard Warren started a weekly, the Connecticut Real Estate
Record and Building News (later and still today, The Commercial Record). The
Thomson Corporation acquired Warren, Gorham & Lamont (WG&L) in 1980. For
more than three decades, WG&L was a major information source for finance
professionals in companies of all sizes and industries. The WG&L product
line includes some of the most valued newsletters, journals and treatises in the
legal, tax and accounting fields. WG&L remains one of the most respected
brands in the industry. In 1996, the tax publishing activities of Warren, Gorham
& Lamont were merged with RIA.
WG&L ® is a trademark
Gorham & Lamont, Valhalla NY.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, February 8, 2010. No reprints without written permission.