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Texas Instruments TI-35 PLUS
The TI-35 PLUS was manufactured both in US and Italy and it took a hint from fellow collector Anders Peterson before we noticed the subtle differences between the calculators:
The US-built version features key-guards on the top row of function keys, while the Italian-built version has them only on the [ON/C] key. Even the battery doors are slightly different.
Compare the technology with the TI-35 II introduced already in 1984.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.