Regardless of which name is stamped on them, virtually every bench and block plane Stanley made from 1869 forward are all referred to (somewhat generically) as ‘Stanley Bailey’, or simply ‘Stanley’ or ‘Bailey’ – all are technically correct.
The Bailey planes comprised Stanley’s basic bench plane line and the company made millions of them.
Some plane parts were frequently replaced by their owners, or are easily separated from the plane, such as irons, cap irons, knobs and totes, and lever caps.
These features are avoided where possible, along with features that appear in only some planes of a given type (i.e. Where possible, the flowchart uses parts that were probably replaced less often, such as frogs, depth adjustment screws and lateral adjustment levers.
In 1869, Stanley Rule & Level bought seven patent rights to Leonard Bailey’s designs. Bailey only lasted until 1875, Stanley retained those patent rights and eventually the use of the Bailey name.
After the relationship between Stanley Rule & Level and Leonard Bailey fell apart in 1875, they ended up in court over a patent infringement dispute (which Stanley eventually won) over the designs of Stanley employee Joseph Traut.
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.
Let the games begin, starting with the bread and butter of Stanley, upon which they built an empire, the Bailey patent bench plane in its various configurations.
Lie-Nielsen, perhaps most notably, manufactures a very high quality line of planes based specifically on Stanley’s premium line of Bedrock planes. all Stanley Baileys can appropriately be referred to simply as Stanleys, as can many Bailey planes as well – the terms are frequently used interchangeably.
I've converted some of the plane dating information found in Patrick Leach's Plane Type Study into an easy-to-use hypertext flowchart.
Leonard Bailey thus retired from plane making but continued his copying press company, (Bailey Manufacturing Company), moving his factory to Wethersfield, Connecticut with a sales office in New York City until his death in 1905.
In an apparent nod to his contribution to their overwhelming success, or perhaps for branding reasons, Stanley started casting the Bailey name into the beds of their plane bodies around 1906.
Hopefully by answering a few questions about your plane you can determine which type it is.