A number of the old Ashton Valve catalogs are now on archive.org.
https://archive.org/details/ashtonvalvetradecatalogs
Vintage steam era parts and fittings catalogs
Re: Vintage steam era parts and fittings catalogs
Illustrated catalogue of locomotives; Baldwin Locomotive Works 1881
by Baldwin Locomotive Works; Burnham, Parry, Williams & Co
https://archive.org/details/illustrated ... ve+engines
by Baldwin Locomotive Works; Burnham, Parry, Williams & Co
https://archive.org/details/illustrated ... ve+engines
Re: Vintage steam era parts and fittings catalogs
Mechanical catalog. 1934
by The American Society of Mechanical Engineers
https://archive.org/details/Mechanical_ ... p?q=ashton
by The American Society of Mechanical Engineers
https://archive.org/details/Mechanical_ ... p?q=ashton
Re: Vintage steam era parts and fittings catalogs
Ransomes and Rapier : Engineers and Founders [Catalogue] 1876
by Ransomes and Rapier
https://archive.org/details/RansomesAnd ... 6/mode/2up
by Ransomes and Rapier
https://archive.org/details/RansomesAnd ... 6/mode/2up