Not my listings, but a couple of nice ZX81s have been added to sellmyretro - one is better than the other!
See http://www.sellmyretro.com/user/profile/Sinclair4ever
Couple of ZX81s listed on sellmyretro
Couple of ZX81s listed on sellmyretro
Rich Mellor
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module
Also Involved in:
Icephorm
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module
Also Involved in:
Icephorm