You might try contacting the Allen County Museum in Lima, Ohio as they have an extensive collection of drawings and memoribilia from the Lima Loomotive Works.
Rick Jesionowski
Rule 1: This is my railroad.
Rule 2: I make the rules.
Rule 3: Illuminating discussion of prototype history, equipment and operating practices is always welcome, but in the event of visitor-perceived anacronisms, detail descrepancies or operating errors, consult RULE 1!
I don't know the tonnage on this particular locomotive, but is something like this what you're looking for? https://upload.wikimedia.org/wikipedia/commons/e/ec/Shay_drawing.png
You will have to do the looking, they aren't necessarily listed by tonnage.
https://www.shaylocomotives.com/draw/ShayDrawings-by-class.pdf
http://www.gearedsteam.com/shay/shay.htm
Henry
COB Potomac & Northern
Shenandoah Valley
I am searching for a scale drawing of a 42 ton Shay for a scratch building project. I have tried contacting the California Railroad Mueseum and they could not provide what I am looking for. Does anyone know where or if a drawing may be attained.
thanks