Hopefully by answering a few questions about your plane you can determine which type it is.The flowchart starts by asking questions about the cast iron bed of your plane.Some were showered with attention by their former owners, others suffered the worst possible abuse.Some owners worked them so hard that they had to replace one or several parts.
I wonder if UK Stanleys had ribbed frogs right from the start of production in 1938 (ish). Dave Vann, thanks for the link - a very informative and interesting site - I wasn't really interested in my "old" planes until I saw that site - now I shall have to investigate them more closely - just to see what I have !! Apart from collector interest, I find it perfectly acceptable to mix and match the various "good" elements of different generations to make a "perfect" model...a flat frog here, a Sweetheart or upgraded iron/chipbreaker there....
All sizes in production including those with corrugated bottoms.
Lateral adjustment lever with patent dates 10-21-84 &7-24-88. The planes were identical to the original Stanleys, except for the markings on the beds, (W.., K..), Keen Kutter and Winchester trademarks on the blades and frogs with twisted lateral levers.
Take a look at David Lynch's site I believe Record features loosely followed Stanley practice. Vann, thanks for the link - a very informative and interesting site - I wasn't really interested in my "old" planes until I saw that site - now I shall have to investigate them more closely - just to see what I have !!
This type study is based upon Roger Smith's original and includes many comments and updates from Patrick Leach. "The improved form of this Plane Iron renders it unnecessary to detach the Cap Iron, at any time, as the connecting screw will slide back to the extreme end of the slot in the Plane Iron, without the danger of falling out.