HP27 : decimal dot and question on keyboard

[PANAMATIK]

In 1976 my teacher gave me his newly acquired HP-25 for learning RPN programming, it had a wonderful bright display with triangle dots. He also convinced my mother to buy an HP-25 for me and we ordered one. When it arrived I was disappointed, because it was different, the display had the square dots and had not exactly the same brightness or color. Also the pouch was darker and not the same shade of brown. I think I was very sensible and childish at this age. But anyway I loved it and it started my programming career.

Today I have several HP-25s, some with triangles, others with squares, also the one of my teacher, which he left to me many years later.

Bernhard