That does sound like a MITS serial no. The K is for Kit as opposed to factory assembled.
"drlegendre ." <drlegen...@gmail.com> wrote: >What's the significance of "3462K", as is hand-written on the 8080 CPU >board? > >Is that a serial? > >On Sat, Jul 25, 2015 at 1:29 PM, Brent Hilpert <hilp...@cs.ubc.ca> wrote: > >> On 2015-Jul-25, at 8:33 AM, Bill Sudbrink wrote: >> > Dwight wrote: >> >> Dave, you were going to tell us where you found it? >> >> Dwight >> > >> > Probably in Larry Niven's Altair? >> >> Indeed, it's in one of his flickr photos of the LN Altair. >> >> https://www.flickr.com/photos/32548582@N02/sets/72157653950476154/with/19938469936/ >> >>