Fleetwood FDC (small stamped red 'Y' reverse top right corner under flap)

Western Silk Cachet FDC 

Colorano "Silk" Cachet FDC 

Colorano "Silk" Cachet FDC (small stamped blue'Y' reverse lower right corner)

Colorano "Silk" Cachet Combination FDC

Andrews Cachet Plate Block of 4 FDC Limited Edition 1197 of 2000

WESPNEX Official FDC (x2)

Art Craft FDC (x2)

Canceled March 4, 1979 Princeton, NJ. Envelopes measure approximately 3 5/8" x 6 1/2". Please see pictures. Will be packaged well to assure no damage.