Mystery boiler

Can anyone help to identify this mystery loco boiler. It's 18 5/8" long overall and 4 3/4" diameter. There are 4 x 3/4" diameter tubes plus 16 x 7/16" tubes and a 3/4" thick walled regulator tube. The outer firebox is 6 1/2" long by 5 3/8" at the base and the inner firebox is 5 3/4" x 4 5/8" . The backhead is 6" high and the inner firebox is 4" high. There are 2 crownstays and a third longitudinal stay along the crown of the firebox. Anyone any idea what loco this boiler might be for - no one at my Club could suggest anything but several members felt the firebox was very shallow (much shallower than my Pansy boiler although overall it's a very similar size. 12" rule in the photos for comparison.

Thanks Sandy

I'm fairly ignorant in these matters, but I don't let that hold me back.

The shape of the firebox looks quite LNER if that helps to narrow it down (or insert a red herring).

**LINK**

Like Jon, I thought LNER too. It's similar to a Maisie, but with a different tube arrangement. The firebox is also quite a bit longer than Maisie, but overall boiler length is about the same. Maisie does have a sloping throatplate, It might therefore foul the trailing wheelset of a Maisie chassis. Good luck with whatever you do with it!

LNER boilers had sloping throatplates so I an tempted to suggest it might be for Martin Evan's Canadian 0-8-0 design Caribou (or 2-8-0 Buffalo)

The boiler was described in ME vol 128, No 3218, 14th March 1963, pp335 et seq and in following issues

Many thanks to all for the helpful suggestions. My Club has a complete set of Model Engineers but unfortunately during lockdown I can't get at them. Does anyone have plans for Caribou or Buffalo who could let me have the relevant dimensions or a copy of the page of the magazine mentioned above. Thanks. Sandy

hi alexander

that is a caribou/buffalo boil i have the construction book

regards

peter

That's fantastic Peter. Thanks for confirming the identity of the boiler and thanks also to everyone who helped- this is a really amazing site. If I send you a PM, Peter, would it be possible to let me have a copy of just the boiler plan- I can't take on any more projects so this boiler will have to go to someone who can make use of it. I got it for more or less the scrap copper price so if anyone us building Caribou it would be a very cheap boiler.Sandy