So I'm looking to find my "forever" finishing stone and decided on an Escher after reading around. Any ideas on where I can find a real escher stone? I don't mind spending a few bucks but don't want to be ripped off (and I am not experienced enough to be able to hone my blade and know if it was my lack of skill or the stone).

I've been looking around on ebay but how would I possibly be able to tell what I'm looking at?
Like for example, would you trust these?:

E Co Celebrated Water Hone Escher Dark Blue w Slurry Stone Razor Hone | eBay

Vintage Escher Water Razor Hone Sharpening Stone Germany | eBay


There is also a guy who has really good feedback selling stones similar to a thuringian - maybe to hold me over until I find an Escher?? what do you think?:
7" German Grey Thuringian Razor Hone Sharpening Stone Water Hone Escher | eBay

Thanks!!!

- Gene