Three sets of Kliptiko tin-plate construction toy in original wooden boxes

  
3 vintage boxed sets of Kliptiko tinplate construction toy made by William Bailey (Birmingham) Ltd. I think they are the largest No. 6 sets in the wooden boxes. One box the contents are in very good clean condition with a good condition instruction booklet. The other two boxes the pieces have play wear and probably incomplete, one box has a torn instruction booklet and the other some blue print plans (in torn condition) and a Juvenile Engineering Manual. They are quite heavy (approx 20kg).