i'm looking to sell some old theatre programs from the 1930s onwards. i went to charing cross road to see if anyone was interested. cecil court is the street for speciality bookshops.

i found a shop which was full of theatre programs. it was full because he had bought lots and not sold lots. as a result he wasn't able/willing to buy any more.

he recommended adverts in the back of stage magazine. i also found this site:
Antiques UK