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Decoding newer serial numbers



#2

Hello,

I have a HP-20S with the serial number ID83807111. This is not the numbering scheme of most other HP calculators. I think that "ID" stands for Indonesia. But in which year has this machine been produced? 83 would be to early, so maybe does the 8 mean 1988 or 1998?

Anyone knows how to interpret this number?

Holger


#3

Hi Holger,

the decoding schemes are here:

http://www.hpmuseum.org/collect.htm#numbers

'Decoding Serial Numbers'

Regards,

Raymond


#4

You are right. I read the text before but somehow missed the last paragraph. So my HP-20S was made in 1998.

Thanks!

Holger


#5

So CN0031 (as on my HP-30S) means China, 2000, third week, Nr. 1?

Frank.


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