This is a set of FOUR First Day Covers for BRITISH BUTTERFLIES, FDC Benham Silk, Small Tortoiseshell, Large Blue, Peacock , Chequered Skipper. Please check the photos for condition. There are corner / edge dings and Large Blue has a couple of spots on the back. Each has a card inside. The FDCs measure 3 5/8 by 6 5/8 inches.