It's a bit mad, we have 2 bikes and and 2 cars all with 2015 discs on them, the missus' 406 has one of the last discs ever issued, got 5 days before it ended....... apparently this "end of issue" disc is worth money...... I'm thinking of getting a copy 1976 period one for the RD350 and getting it stamped by my local post office. It looks really very odd without the disc as I had it off to replace the swing arm bushes.
I got a September 15 one on my VFR, wish I'd kept it in the perforated paper thing it came in. Think I'll just leave it on the bike though