Vintage 1970s 2 Post-a-Card Booklets By Montag Birds Butterflies

Vintage 1970s 2 Post-a-Card Booklets By Montag Birds Butterflies 3 1/2" x 5 1/2" Fairly good Used condition. Birds Booklet contains 16 cards; Butterflies booklet contains 14 cards; One of the butterflies cards has become unattached from the booklet. Some age-related discolorations on covers and you can also see some on edge when looking at the thickness view. Please do not hesitate to contact me if you have any questions. Thanks for Looking!