It's funny I have not caught on since I've been post a lot for a while now, but what does BU stand for? I finally figured out CWR must stand for customer wrapped roll.
Yup! That's right! 'BU' = 'Brilliant Uncirculated' 'AU' = 'About Uncirculated' 'XF' = 'Extra Fine' 'VF' = Very fine 'F' = Fine 'VG' = very good 'G' = good 'F' = Fair 'Cull'= numismatically not really collectable unless a very, very, very rare coin.
If one is only hoarding copper for metal content, these 'coin collecting' (numismatic) terms are not very relavent.
If however one is also checking for certain dates (1914 D or 1909 S VDB, etc.) or for well know and hard to find errors (such as 1955 Double Die, etc), then the condition of the coinn becomes exceedingly important.
For example: Since I have been sorting pennies I have run across two 1984 double die error pennies. A coin dealer paid $30.00 for the first because it was corroded and probably would only grade as 'fair' condition. He paid $70.00 for the same date error which probably graded 'VF' to 'XF'.
Hope this is helpful, but it barely scratches the surface of numismatic terminology (and I am no expert on such things!) However, I am still searching for that 1914 D in VF-XF condition which I'm just sure is out there somewhere
just a few others I have come across (if any are incorrect please advise) BWR: bank wrapped roll OBW: original bank wrapped roll PM: precious metal or personal message (depending on context) Rich from copper: what we will all soon be:-D