. Proceedings of the annual convention . FOURTH ANNUAL CONVENTION. PLATE XIV, DETAIL OF STANDARD SEMAPHORE ARM CASTING. :m. x % x 312 PROCEEDINGS OF THE So SS ho

---

Size: 1337px × 1869px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookidproceedingsofann41903amer