As part of our 25-year anniversary celebration, we brought back some of our favorite stamp images from the last quarter century and combined them into 12 sets, which were released - one set per month-during 2013. Did you miss out on getting one of the anniversary sets? You can still order them until March 31, 2014.
As a special incentive to collect the Best of stamps, we included a collector's card and 25-year proof of purchase sticker with every Best of set. Collect six stickers, and send it in to redeem a FREE set of your choice valued up to $14.95! Free sets must be redeemed no later than April 30, 2014. To print out your own collector's card, click on this link