5 x 1950s Christmas Cards (Envelopes a bit stuck to cards !)

5 wonderful 1950s cards where, unfortunately, the gummy bit on the flap of the envelops have stuck themselves inside the cards - see 4th photo.
I've successfully steamed a couple off- but it does leave a mark.
I have 2 selections
- 4 pink cards, 1 yellow
- 5 pink cards