May / June 2020

VOLUME 54 NUMBER 3 FEATURES: Build a Duplex Steam Pump - Part 1 by JOAN LLUCH An Automatic Signal System for a Backyard Railroad by RAY GROSSER The Ashton Valve Co. by RICK ASHTON Building the Lombard Hauler - Part 11B Boiler by CHRIS RUEBY Etching Custom Plates by CHRIS RUEBY Rio Grande K-27 - [...]