Constructor Quarterly Issue No. 51
Mar 2001

PBY Catalina Flying Boat; A Reliable Ping-Pong Ball Roller; A Striking Unit for Meccano Clocks; A Tower Mill in Meccano; Eccentric Time – the Wobbly Differential; The Owl and the Pussycat; Poclain 1000 CK Excavator; Meccano 100 Plus.

UK £16.00