identifying first run or rare discs

can someone give me the lowdown on how to identify first run discs? i see people advertizing thier discs as first run, but how can i confirm this? also is there a list availible of rare or collector discs?

thanks! :)

[donnyv]

Usually you look at the stamping first. If nothing is there to id, flip over to the underside and look for serial #'s, manufactuer, etc. Then we compare to others we find on e-bay. Or post a pic of it here!

[merrit]

stamping? on the front or back? what would i be looking for in the serial number? is there a number that indicates the run, number of disc in the run it is, or number of discs stamped?
sorry if these are dumb questions! i'm learning!

[Nibs Carter]

http://www.discgolfsweden.se/discar/discar_english.aspx

this link can be very helpful. lots of good info on just about anything out there.

[FADE Man]

For Discraft, all of their first runs have the words "First Run" on the disc in the foil or ink stamp. They remove the designation on subsequent runs.