CELEBRATE THE CENTURY US POSTAGE STAMP COLLECTOR SHEETS - COMPLETE SET of 10

CELEBRATE THE CENTURY US POSTAGE STAMP COLLECTOR SHEETS - COMPLETE SET of 10 . 6 of the packs - 1900s through 1950s - have opened cellophane (top or bottom). 4 are sealed and unopened. Please determine condition based on the photos. My nephew inherited a stamp collection and I will help him to sell by listing more items in my eBay store soon.
Buyers in Virginia pay 6% state sales tax. Buyers outside the continental United States will pay added costs for shipping. Please inquire prior to bidding.