Sold August 2025 Back to Archive

3 1/2 inch gauge BR Standard Class 7 "Britannia" 4-6-2 - stock code 12557

A 3 1/2 inch gauge Britannia to the LBSC design, a well-built engine that has been on display, unsteamed, since we last sold it in 2014.

Test-steamed once when first built, we suspect it's yet to run on a track - condition is as-new throughout, the paintwork remains in excellent condition.

The combustion chamber boiler has had a twice working pressure hydraulic test with new certification issued. The regulator currently doesn't convey air from boiler to cylinders when operated, it will require servicing if intended for use (or not, if the engine is destined to spend another ten years in a glass case!)

gauge 3 1/2 inch
length/inches 35.5 + 20
width/inches 7 1/2
height/inches 11
weight/kg 38 + 10
wheel material cast iron
axlebox type plain bearing
cylinder material gunmetal
valve type piston
valve gear Walschaerts
reverser type screw
injector(s) 1
year built unknown
CE mark n/a - non-commercial
working pressure/psi 80
boiler type locomotive with combustion chamber
boiler material copper
boiler construction silver soldered
hydraulic test valid to 15-Dec-2028
superheater(s) 4
superheater type flue tube
safety valve(s) 2
safety valve type spring
mechanical pump 1
hand pump 1
whistle yes