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1 1/2 inch scale Marshall semi-portable engine - stock code 10323

A well-advanced Marshall semi-portable, based on the 1 1/2 inch scale portable design by A.J.Avery, "Manufacturing Model Engineer" of Brighton, in 1940 and complete with three sheets of blueprints.

Although built to the same scale as the Hughes/Kibbey portable design published nearly 40 years later in "Model Engineer" magazine, it's a significantly large engine, presumably based on one of Marshall's larger designs.

length/inches 21 1/2
width/inches 12
height/inches 17
wheel material cast iron flywheel 9 inch diameter
cylinder material gunmetal
valve type slide
valve gear single eccentric
boiler type locomotive
boiler material copper
safety valve(s) 1
safety valve type spring
whistle yes