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This WG&L incotax calculator was manufactured in February 1981 by
Texas Instruments in Abilene, TX (Date code ATA 0581 wk 05 yr 1981.

The base calculator of this WG&L incotax calculator is a
standard TI-58C manufactured in 1981.


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, February 8, 2010. No reprints without written permission.