I’ve noticed vermont slate popping up a bit lately last time I remember was a few years ago and I dont think WoA either.I was thinking Vermont slate or mueller stone. Guy says it’s a WoA... but doesn’t look like any I’ve seen. He follows a couple of the guys on eBay known for selling welsh slate and mueller stone as Thuringian so I’m suspecting there’s a new racket selling a modern stone as WoA.
You may be right. I'm thinking it's something like 8x2x1.5 and that's why the width changes... we're looking front/back and a side on a stone lapped on all sides (looks like he shows front twice, pic 1 and 4) but two stones is definitely possible.I think its 2 stones but I could be wrong.