Stanley bailey no 4 dating
These are the war production planes, and all bets about what is and isn't proper on these examples, and those made in the years immediately following, are off.
This is an area where the type study is very weak, in my opinion.
This is located below the frog, and engages a fork that is screwed to the frog.
Many specimens have been seen, but there is always the potential for finding a new type or an anomaly. These two cutaway pics from Paul Sellers shows the small range of blade advance and retraction.The more the blade is out, the less you can advance the frog.They now have a waist to them whereas the earlier ones are cylindrical over their length.A frog adjustment screw, first offered on the Bed Rock planes, is now added.