Re: HP-35--then and a wee bit later Message #2 Posted by Jeff O. on 12 Apr 2012, 7:52 a.m., in response to message #1 by Matt Agajanian
Not sure if I understand what you mean by collection significance. Obviously, a red-dot version 1 is much more desirable to a collector than a version 4. But a collector will also want to have all versions. The version 4 is interesting as the final evolutionary step of the 35, the first handheld calculator to perform transcendental functions.
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