The Locomotive
A technical periodical issued from 1867 by the Hartford Steam Boiler Inspection and Insurance Company in Hartford, Connecticut, for engineers, plant owners and boiler inspectors. Halftone photographs record ruptured shells, cracked fireboxes, corroded tubes and machine-shop interiors, alongside labelled line diagrams of boiler settings and piping; useful for industrial texture, annotated cutaways and grainy dark-toned machine forms.
