Does HP-45 have a series number?

[Waon Shinyoe]

Hey I'm glad to aquire a full set of HP 45 recently. (Without battery package. Also the FIX key and 1/x key don't work.)

Every time I get a vintage HP I always check the series number to see how many years the calculator is older than me XD

But I can't find a series number on my HP 45. I wonder if the HP 45 doesn't have one?



I'm in my national day holiday... yet for someone it's a national martyr day...