Identify this calculator

[Jlouis]

(11-01-2015 02:17 PM)Bill Platt Wrote:  This is one of the general arrangements that came to mind. But there is another one I remember in my mind but cannot find. I'll keep looking:

http://www.rskey.org/ti56

I have considered that too, but soon discarded for the calculator in Terry photo has kinda bigger key, maybe a switch, in the upper right side, which is darker than other key.

Bill, you have brought a tough charade for us. But I really like it.

I agree with Johnson, looks like a tape that fits on the display.

[Pierre]

For the calculator, i don't know.
But the woman is Terry Gross (born in 1951) using a tape deck.
Photo used for the 40th anniversary of "Fresh Air".
(an interview radio show produced by WHYY-FM in Philadelphia)
So it was in 1975 ! Terry was 24 years old.

[Gerson W. Barbosa]

The following appears to be just an uscale of the previous photo, so it won't be of much help for identifying the calculator. Anyway, here it is: