Hi
I have had one of these for the best part of 30 years (good grief! I feel old now lol) They were made by a firm called Campari, who specialised in budget range camping equipment; having said that, their products were always well made. Mine came with a wee aluminium cup and I used the set on many a camping trip in my youth; the frying pan handle doubled as a 'clasp' to hold the lot together. I've now moved on to bigger billys (as in hold more grub), but have always held onto the Campari one. I figured it would still do good service for a 'fast and light' one night sorta thing.
Anyway, sorry to hijack your thread...its a great wee piece of kit; good luck with the sale!
DM