The Locomotive
A technical periodical issued from 1867 by the Hartford Steam Boiler Inspection and Insurance Company in Hartford, Connecticut, reporting boiler failures and inspection findings to engineers, plant owners and policyholders. Halftone photographs show ruptured pipe and cylinder sections laid beside folding rules for scale, alongside line-engraved sectional diagrams with hatched metal walls and flow arrows — useful for measurement motifs and cutaway mechanical drawing.
