UNITED STATES – FOUR CARTONS OF FIRST DAY COVERS – 424036

UNITED STATES – FOUR CARTONS OF FIRST DAY COVERS – Massive grouping of some 1,500 USPS first day covers covering most of the second half of the 20^th century contained in four large cartons! The collection combines very attractive cachets from the 1940s with modern issues from the late 1990s! While there is some duplication here and there, ultimately, the lot is a massive collection and duplication levels are very low, and thus collectors looking to bolster modern portion of their collection would find this a great resource! Additinally, the lot also includes a collection of UN stamps running well into the late 1990s! (We only took some overview photos while repacking the lot to show the scope and internal organization within)