Dating bedrock planes
Both were made by Chevrolet, both are cars and but what a difference. This # 607 C Corrugated Bedrock Jointer plane is an early round side model. It has the 2 line Bedrock cap making it a type 4 from 1908 - 1910.
Hopefully by answering a few questions about your plane you can determine which type it is.This might seem innocuous, or even not apparent at all, but in the context of functionality this little adjustment assister makes a huge difference to the plane and especially so for the setting of the lever cap in relation to the pressure it applies to the cutting iron assembly.I first used the term cutting iron assembly 20 years ago to describe the united cap iron to the cutting iron as it best describes both parts as a unit.The flowchart starts by asking questions about the cast iron bed of your plane.I've chosen the bed as a starting point because it has many easily identifiable markings, and it probably wasn't replaced that often.The best approach is to use the flowchart to date your plane, and then visit the Plane Type Study and Plane Feature Timeline to verify the type. (Does anyone want to take pictures of parts that are hard to describe?
Send them to me and I'll add them to the flowchart...) If you find errors or discrepancies, Patrick's Plane Type Study is the final authority.
Start by reading Patrick Leach's comments on Stanley plane dating. If you thirst for heaps of data on plane dating, visit the Plane Type Study or the Plane Feature Timeline. This page leads you down a hypertext flowchart to determine your plane type.
It includes links to Patrick Leach's original Plane Type Study and the Plane Feature Timeline.
If the hole that the lever cap screw passes through is kidney-shaped, the plane was made in (or after) 1933. A rusty plane just means you are going to pay less. Again, Lee Valley sells replacement rosewood handles if the ones on the plane you buy are beyond repair.
That is not to say you won’t have success with a later made plane. Lee Valley sells both Hock and their own Veritas brand blades, both of excellent quality. There are also several companies on the Internet that sell replacement plane handles for almost every hand plane, in almost every species of wood.
On the left is the B&Q lever cap showing the square and angular corner to the cam that causes an issues.