Has anyone had these?

I found these on ebay and decided to bid on them.  Missed a couple of auctions so ended up with 50 at about $1 each - they sold for $10.95 (aud) each back then. I figured they'd be a good learning process for me, not to mention give me some light timber to work with and build my library a bit.  They arrived today - so funny - in a 'lettuce' box with "keep refrigerated 3-5 c on it.. my son picked it up and rang me quite frantic.. it wouldn't fit in the fridge!! Hahaha!!! Anyway, I guess it'll keep me busy for a while.. these came out around 1997.