Hi Evelyn,
Your father was building rather a rare loco in miniature – a LNER V1 or V3 2-6-2T.
He appears to have based the chassis on the Harry Jackson of York drawings for the 3.5"g Green Arrow.
Your father appears to have designed the boiler himself. If this could be shown to be a close copy of a published and proven design then this would assist considerably otherwise we are into the realms of a new boiler design and all this entails these days.
I hope you wont take this the wrong way but your father appears to have made a bit of a hash of the silver soldered joints on the partly made boiler. This may be why he did not progress further. It is difficult to say from a few pics whether the boiler shell joints can be rectified.
The Jackson/Clarkson drawings for the chassis are not for the faint hearted or beginner.
However Martin Evans designed a 5"g V1 'Enterprise' and his drawings would no doubt be of use in completing your father's 3.5"g version.
Whereabouts are you located?
Cheers,
Julian
Edited By julian atkins on 25/08/2017 10:12:18
Edited By julian atkins on 25/08/2017 10:12:46