Vintage Stanley iron trademarks

The type study of Stanley bench planes At RexMill.com is a wonderful resource. Can I infer that if a non- bench plane iron has a certain trademark then it is of the same vintage as the bench planes in the type study? For instance, if a 151 spokeshave or my little 101 have a V shape trademark on the iron are they the same vintage as a 1910-1918 type 11 bench plane? Furthermore, does the type study apply to Bedrock the same as Stanley-Baileys.

-- "It's only wood. Use it." - Smitty