Towle-Old Colonial pattern

I am trying to replicate my grandmother’s sterling pattern-Old Colonial by Towle as she received in 1916. Having trouble in knowing which pieces were in her 1916 place setting (example: modern hollow knife, new french hollow knie, old French hollow knife with bolster, blunt hollow knife with bolster) Does anyone know where I could find which pieces were available in 1916? Thanks to anyone who can give me assistance!