This was a relatively low cost EPROM board, originally intended for the Nascom-1. It appeared at around the same time as the Nascom-2 and allowed the Nascom-1 user to install the Nascom BASIC ROM together with 8 EPROMs. After all these years I can’t remember where I got it from – I think it was the Merseyside group. There is no maker’s name or number – not even screen printing. It was definitely produced down to a cost, but effective nonetheless. This example was in regular use in my Nascom-1 for a long time.
nascom.info 