Archie,

Are you familiar with NATCA's (National Token Collectors Association) grading scale? Token collector's aren't as concerned about condition as coin collectors so their grading scale is based on five "catagories". I've attached a scan of the scale from the recent copy of "Talkin' Tokens". Their estimated value scale is interesting too. A mathematical progression based on the exponent 2.

Dave Smith in New Hampshire
"LIVE FREE OR DIE"