Fifeteen Each 3 Cent & 15 Cent Mint US Sheets

Fifteen Each 3 Cent & 15 Cent Mint US Sheets. 3 Cent sheets of 50 1940 and 50 s era. 14 Sheets of 50 and one sheet of Louisiana Expo 40. Seven sheets of bird stamps in various plate positions and others. Probably 1970 80 s era. Should be unimpaired gum. From a retired dealers estate. Could be under face value