HP 41 PPC ROM Production Run Total

[rprosperi]

(10-07-2022 02:02 AM)vervalin Wrote:  Did you see my picture above of the ODD one with the P18 stamped on the case?

Actually I missed that until now, thanks for noting it. I've no idea, but I'll speculate that this is one of the 'extra' units that HP provided as replacement units for the lot of 5000. I've not a clue what P18 stands for, however the engraving style appears to be just the same as seen on the top of the first-run units (hard to tell, the photo is not great), and I've not seen this style on other ROMs. I look forward to finding out, please do post what you find here. Thanks!