GRADE 2 (Good): This is a nice displayable coaster but there are some definite flaws with it. The coaster was probably used on a bar and has a moderate amount of wear, stains or marks. A larger pin hole or light overall fading would place a coaster in this grade
Coaster of the Month
Descriptions from Tom Byrne's Coaster Book published in the early 80's
MINT: The coaster is absolutely flawless. No stains or discoloration No printing errors and no frayed edges
GRADE 5 (Filler): A grade 5 coaster is one with corners that are bent or broken off. Stains that obliterate part of the writing on the coaster or nail holes that have split a corner of the coaster make it a grade 5. This is the type of coaster that you should definitely upgrade as soon as possible. If you erase a coaster to the point where some of the ink is removed, it is a grade 5 coaster
GRADE 1 (Very Good): An excellent coaster that has a slight printing error, tiny frayed edge, or minor spot of stain. A tiny pin hole on an otherwise mint coaster would drop it to grade 1
GRADE 4 (Poor): Large nail holes with bits of paper shredded off near them are signs of a grade 4 coaster. Definite stain marks, warped edges and burn marks make coasters into grade 4 condition. Coasters that have writing on them or bad mildew spots will be in this grade
GRADE 3 (Fair): This grade probably is the lowest grade that you would want to buy. It may have overall fading and stains from being used. There are certainly rough edges with dents or creases at the corners. One or more nail holes will bring a clean coaster down to a grade 3
Coaster of the Month!
Grading Your Coasters