I'm searching blue prints or good drawings of ERIE L-1 camelback mallet, here a picture of this steam engine. Construction of brake gear is of especially interest.

Whe knows persons, sources or links where I could ask for help? Thanks to all beforehand for your help!

Here you go.. Hope this helps. I can email you a full size PDF of it if you like., just PM me your email.
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This is from the Railway Master Mechanic magazine, my collection.

E-paw, thank you very much for your offer! I have a pm.
Maybe that this picture does not help for my planned project however I would like to add such documents to my website as additional documents to my website about the prototype.
I would be lucky to get your permission for use and publishing this copy on description about the reworking and digitalizing of my Erie L-1 0-8-8-0.
Thanks again!