Early HP 41CV with embossed logo

[rprosperi]

Another Frankencalc, but this time a very special one!

I've wondered if these embossed logos were applied by HP service, for 41C units sent in for service, where they changed the board and logo.

Also, I vaguely recall a program when the 41CV came out where you could send in your 41C to be upgraded, for some nominal fee, but I have not found any documents, brochures or other notifications about it. Perhaps units that went through this upgrade program received the embossed logo as a bonus??

There is also a downside to seeing this... another 41 model to track down... <sigh> a collectors work is never done...

Thanks Didier!