RPN Christmas Present

[rprosperi]

Below is a photo of a great gift coffee mug my son got me for Christmas. It would appear I mention RPN around the house more often than I thought... Also, I did get this son an HP-12C when he started his new job in the fall in the financial market on Wall Street. While raised surrounded by HP, for school he had to learn calculators using a TI; but one could clearly see his satisfaction at seeing/feeling such a lovely piece of engineering.

The mug is surrounded by the last 3 RPN machines I played with; an HP-71B, a 41CL and a DM-15L. Aha you say, the 71B is not RPN! Well, if you look closely, you will see there is an RPN Calculator overlay installed.