White House Bicentennial * Presidents * 40-Cover Set. A series of 40 covers with Webcraft add-on cachet (applied in 2006) for the bicentennial of the White House. Each president, through the first George Bush, is honored on a cover in the set. Each has the pictorial cancel from Washington, DC, on October 13, 1992, for the 200th anniversary of the laying of the cornerstone, and is franked by the 29c Flag over White House definitive that was current at the time. The Webcraft name and the year the cachet was applied are printed under the flap. The photo below shows one example to illustrate the style. All are similar to this one. Seller has 100% positive feedback from over 4000 different buyers on eBay. APS #91191; AFDCS #26111.