Engineers
Our neighbour used to build model locos from scratch and even made the miniature lathe etc he used for manufacturing them. Ex Navy engineer and worked the rest of his working life in the Barrow shipyard, finishing as a manager on the Hull Services Department during the construction of the first nuclear powered subs in the sixties.
He never had a formal training beyond an apprenticeship in the yard and would never be regarded by many as a 'proper' engineer but his eye was faultless. Really good with metal but, by his own admission, bloody hopeless with wood. I came across an old copy (A4 size) of a drawing for the Pacific class loco in my cellar the other day. If I can think on I'll get a picture put on here shortly.
Just as an aside, I love the whole business of working alongside these old school practical men. One phrase that sticks with me is 'Slack as prick in a shirt sleeve' but there's loads along that line, which I think of as secret incantations to free off seized nuts or drive out tight pins etc.
Cheers
H