Back-Of-The-Book Accumulation, 1918-2001, used and mint accumulation, starts with nice assortment of C1-6 then a general run of issues including C18 Mint (X3) plus a complete run of modern Air Post with good face value, also Special Delivery, Parcel Post and Special Handling all generally complete, duplication throughout, condition mixed. Estimate  $2,000 - 3,000. $0