Dave Caroline wrote: Hmm, that does sort of tie in - one of the "storage jackets" for these disks has the text: MLC sales ledger MAILDF Labels and letters NO. ... which sounds like the same sort of application as your magnetic strips hold. The "No." bit is interesting; because the disks are just the "innards" of a floppy, there's no way of labeling the contents. There's a 4-digit number printed on both of the two disks that I have here though - I assume that the intention was to write the disk's number on the jacket and then use the jacket label to describe the disk's contents. How you were guaranteed to never get the same number twice, I don't know - unless the disks were only ever "read only" and supplied by Olivetti, rather than intended to hold user data?

hehe try remembering to give the url www.archivist.info/computers/audit5.html Dave Caroline

Dave Caroline wrote: Hmm, could well be! I don't recall ever seeing a system like that at the museum (where I unearthed these disks) - but it's just possible that I've perpetually missed it in storage somewhere! More likely the disks actually came "by mistake" in the box of paper that I found them amongst, though.

Chuck Guzis wrote: Hmm, that's a nice shade of blue, though! Such colourful casing's pretty rare for that sort of timeframe. We *definitely* don't have one of those, I would remember that.