Beechtree wrote:This Simonds MFG Co. has an interesting saw tooth shield. Note that this is not E. C. Simmons.
Simonds Mfg. Co. was and still is a saw manufacturer. Began in 1832, Abel Simonds formed a scythe making business in Fitchburg, MA (See photo circa 1850 of the Simonds scythe makers). In 1868 the company incorporates as the Simonds Manufacturing Company and a new factory is built (Shown in the second picture). In 1878 the company begins manufacturing saws and by 1887 they have 200 employees. In 1922 the name is changed to Simonds Saw and Steel Company and by 1923 they have 2,200 employees. They stopped manufacturing handsaws in 1926. The still exist today as the Simonds Industries Inc.
Therefore, this knife dates from sometime between roughly 1878-1922. I would guess between 1900-1922. All blades are marked.
For more information on the company, http://sawnutz.galootcentral.com/simonds/
Neat knife with a great shield and enjoyed the history link.