You are purchasing the USPS Service Mint Set of 1981 Commemorative Stamps(#881) & USPS 1981 Definitive Mint Set(#839). Both are in NM condition as everything is in its original position. The following describes each set.
1981 Commemorative Stamp Set(#881) - 41 stamps: 2-15c,31-18c 6-20c and 2 Christmas stamps with no denomination
1981 Definitive Mint Set(#839) Kit A -  contains 16 page color album,46regular denominated stamps 4 46 protective mounds
Specifcally this set has on pages 1-3 - 56 total stamps minus the A & B stamps for 46 total denominated stamps
Page 3 - 28c First transpacific flight and 10c postcard Battle Cowpens
Page 4 - Nondenominated Eagle postcard for domestic use only(value was 12c
Page 5 - Battle of Eutaw Springs 12c postcard and Lewis & Clark Expedition 12c postcard
Page 6 - Nondenominated Robert Morris postcard and Robert Morris 13c postcard
Page 8 - Nondenominated "B" Envelope and STAR 18c Envelope
Page 9 - Blinded Veterans 18c Envelope and Nondenominated "C" Envelope
Page 10 - Capitol Dome 20c Envelope and Tourism 30c Aerogramme issued September 21 in Honolulu
Note "This envelope contains important instructions and order form for completing your album' are not available or never had. Please look at the pictures carefully to see if these two 1981 commemorative stamp and definitive stamp sets are for you. Please email if there are questions. Thanks for looking!