Stanley bedrock plane dating
The key difference between the two designs is found in the way the frog mates with the bottom casting.
For such a seemingly minor difference, the Bed Rock planes were offered at a premium over the Bailey's, and it was a design that never seemed to be very static nor nearly as popular as Stanley's wildly successful Bailey line.
It is a very hard to find plane in nicer than average condition and nice ready for inclusion in the best collection. It has the proper Stanley Lever cap for this era, and the cutter, which is full length is of Sweetheart vintage. The 602 was the smallest size made and is by far the rarest and most desirable of the Bedrock series of planes. It is just a nice plane ready for inclusion in the best collection.
This #602 Stanley Bedrock Smooth Plane is a very nice plane. From its features it appears to be a type 9 which was only produced in 1931 - 1932 according to the Bob Kaune type study. This #602 C is a type 6 with flat sides and a 1 line Bedrock cap.
The information in this Web page is derived from a type study done by Roger Smith, in his book "Patented Transitional & Metallic Planes in America." Patrick Leach reformatted the type study and added comments based on his experience with Stanley planes.
Stanley soon changed their numbers to be the 600 series to set them apart form the standard line of bench planes. Over the years the Bedrock name on the lever cap changed from a 3 line Bedrock cap, to a single line Bedrock, then to a short lived 2 line version.
Both were made by Chevrolet, both are cars and but what a difference. It has the proper 3 line Bedrock cap, round sides, 1 screw frog adjuster and low front knob of a type 4. Everything else about this fine 607 jointer plane is Like New / Fine and all original. He applied his trademark coat of clear lacquer to protect it from rusting and put it in a glass front case he made for his collection. The type 1 / 2 Bedrocks had the special new mated frog design but were numbered with just a single number.
Stanley's Bedrock planes had a unique frog design milled flat to match the bed of the plane. The other distinguishing feature of these early Bed Rocks is that there is a milled out area where a patent date that was in conflict with a competitors patent was ground out. It has been lightly cleaned, and has a rich dark patina. A previous owner did scratch his name on the side with an electric pen.
These planes are, for all intents and purposes, nothing but a variation of the more popular Bailey series.
They all have an adjustable frog, the brass depth adjustment knob, the lateral lever, a lever cap, rosewood knob and tote, etc., just like the Bailey's.