Type: Mark
Location: Bow, interior
Inscription: "B & M'C" stamped incuse
Type: Mark
Location: Bow, interior (opposite initials)
Inscription: "PHILAD." stamped
Type: Mark
Location: Bow, exterior
Inscription: "26" stamped incuse
Type: Inscription
Location: Lens rims, top
Inscription: “Ann" "Hughes” engraved