HP 41CX with Strange Serial Number

[Raymond Del Tondo]

(01-02-2019 10:17 AM)grsbanks Wrote:  I see nothing strange about the serial number other than the fact that it's on a label in the battery compartment. That could be because the lower shell, on which the serial number is stamped below one of the ports, was replaced at some point during the calculator's life.

2508S = week 8 of 1985, made in Singapore.

That's it. Nothing special, and not a "rarity" at all. I have seen several HP-41 units with replaced lower shells. Some of the service people used to scratch the original serial number onto the blank area where it was stamped on the old shell, other people simply used the sticker.

The pics below are from my personal collection, and show an EmptyNut along with empty card reader shell. Both are unused, and were produced by HP as service replacements.