Old stuff

Was going through a box earlier and found a few old things.
A casio fx82a scientific calculator. These were all the rage in the 80s.
A casio 64k SF-7500 Digital Diary. Woo! From the 90s when 64k meant a lot. I thought it could be valuable now, but they go for about £50 on ebay.
Plus vintage Sky viewing card and BT Phonecard. A phonecard for that era between coin boxes and no more boxes.