Fans of Renaissance and Annie Haslam
Finally got hold of one of these -- in fact, not one but two copies, would you believe it, from the same seller in separate transactions: a pristine one for the vault, and a slightly damaged/stained one to scan and photoshop for this presentation.
I don't know the full details, but the images and text (particularly the MG T-shirt offer therein -- $5 for the shirt plus $1.25 shipping!!) suggest that MG (British Leyland Motors), maker of the popular (at the time) MGB and Midget convertibles, was a sponsor of the Song for All Seasons tour. The concert program was in the form of a four-way foldout A3 sheet, with a band poster on one side, and front/back cover plus foldout article spread on the other.
Foldout band poster (folds photoshopped):