By The Rock House Method. Comes with tab (tablature) booklet.
I like to grade things more conservatively as I don't like buying bad stuff so I aim to be honest.
Very good: No or very light scratches to disc. Case could have light shelf-wear. Inlays are very good-near mint.
Good: Could be light-medium scratches to disc. Could be light edge wear to inlays and light crinkling but most inlays very good. More likely to have shelf-wear to cases, mainly loss of shine and scratches.
Acceptable: Light to high level of scratches to disc. Light-high level of shelf-wear to cases. Inlays could have light-high level of crinkling and or water Damage. Anything condition-wise of importance will be listed in the condition description section.