| Tool Steel Alloy | Spring Temper | Location |
| Backsaw | 10700T1 | bio | photo | MH |
| Spring steel, brass, and wood, 15 3/4" long with 12" blade, signed "NOOLE STANIFORTH & CO. SHEFFIELD" and "DOUBLE REFINED |
| SPRING WARRANTED" with the brass signed "H. DISSTON & SONS PHILADA". |
| English-made spring steel has been processed by Henry Disston & Co. into a saw. The marks on this saw are a puzzle because H. Disston |
| & Sons is a later signature and by this time Disston was producing his own cast and spring steel. |
| Historic Maritime IV (1840-1865): The Early Industrial Revolution | Woodworking: Saws |
| | Page 3 of 3 |
