The Unisonic 1499 - rare as can be and has hyperbolics

[Gene]

The inverse key works with the LN, LOG, and trig and hyperbolic trig functions. Note the usual Unisonic key colors: white, blue and orange. Note the brushed aluminum / stainless steel coloring.

But this has a red led not a green display. It also has a brown body. The D R G switch is humorous.

This is the ONLY model 1499 I have ever seen and I've been looking for 20+ years. If you find one, grab it. No other unisonic model has hyperbolics. The 1299 model has other functions this 1499 does not have, but this is the rare one here.