Sold December 2025 Back to Archive

5 inch gauge LNER A3 No.2505 "Cameronian" - stock code 11774

We sold this one earlier in the year, it's just come back in as part exchange against a new, unsteamed Great Western "King".

Condition is cosmetically pretty much the same as when it sold last, with the exception of new water gauges, shown in the photographs opposite. The owner has done various jobs, resulting in it successfully passing a club steam test in recent days, with new certification issued.

A 5 inch gauge LNER A3 No.2505 "Cameronian", a three cylinder locomotive with Gresley-Holcroft conjugated gear, reputedly built by Herbert Clarkson, the "Son" of "H.Clarkson & Son" of York.

An older engine, the boiler has had recent hydraulic test with new certification issued. The last club test dates from twenty years ago, suggesting relatively little use in its life to date.

On test the engine steamed freely and ran quite well forwards, less so in reverse. The twin ram axle pump and double-acting hand pump both worked well, keeping up with demand from the boiler. The left hand injector doesn't give much indication of working, the right hand injector has been disconnected.

Offered as a running restoration, work required includes:

  • Service drain cock linkage, centre cylinder drains don't close
  • Rebush weighshaft and radius rod suspension to correct wear
  • Refix loosed motion brackets
  • Service/replace seized blowdown valve
  • Service steam brakes - driver's brake valve leaks, rendering them inoperative
  • Service/replace clack valves which leaked on test (although may take up under steam)


gauge 5 inch gauge
length/inches 48 + 28
width/inches 10
height/inches 15
weight/kg 117
wheel material cast iron
valve type slide
valve gear Gresley-Holcroft
reverser type screw
lubricator type mechanical, triple ram
injector(s) 2
boiler number 11774
year built 1994
boiler maker Herbert Clarkson
CE mark n/a - pre-2002
working pressure/psi 80
boiler type locomotive
boiler material copper
boiler construction silver soldered
hydraulic test valid to 14-Jan-2028
steam test valid to 15-Jul-2026
superheater(s) 4
superheater type flue tube
fusible plug no
safety valve(s) 2
safety valve type spring
mechanical pump twin ram
hand pump 1
whistle 1