From my research and experience even the best of books and advice can be off when it comes to identifying old tools as to their vintage.
One author’s been quoted as saying, in the case of Stanley, that when a new model run began the workers would keep using whatever parts were available from the older units until they were gone.
I have a (my mistake) Stanley #4 that I fought for at auction because it had a Bedrock lever cap..number 4, not Bedrock’s 604 designation..Sigh..
The Sargent could be a slight Frankenplane, somebody could have broken the cap and simply put the newer one on..then you’re stuck with the user\collector question..and do you try to track and orriginal lever cap ?
There are dealers with those in stock like Bob Kaune..
Glen
-- Glen, Vernon B.C. Canada
