Not sure what the fuss is about. There is no ISBN, no publisher. Bur a bargain at £15.00. Not sure if it is a Xerox or print. Good clear print. Will be on Mendip in 2 weeks time, will show it to anybody then.
If you've bought a second hand copy of the genuine earlier edition i.e. not a photocopy, and it was honestly described as a second hand copy of the genuine book then there is no issue.
But
if what you've bought was sold to you as "the latest copy of the Rhosydd book" then - from your description - you've been sold something that was dishonestly described and represents copyright infringement, either of the current or previous edition.
The sums of £10, £15 or whatever may not seem large; but two people have put a lot of time and money into bringing the new and improved Rhosydd book to print. They're not going to get rich on it, they did it because people asked for it.
And their commitment deserves our support and gratitude.
But let's get to the bottom of what you've been sold first?
my orders are to sit here and watch the world go by