Shanklin Isle Of Wight 3x Rare SAMPLE 1970s Postcard s

ts346  A unique opportunity for any Isle Of Wight collector - these were all SAMPLE postcards in the 1970s ... Did they go on to get published ?  Only a historian who follows 1970s postcards will know.,  They were Salmon postcards - bar slight corner fraying they all seem great unused condition - each has SAMPLE stamped on the front of the postcard - you dont often see these as publishers would never let them out their factories