englishman.ca

ALL No. 1 Pattern Lee Speeds I have come across had their ribs soft-soldered onto the barrels, just like the sporting Martinis. Some had a few pegs to keep things aligned which were also soldered on, but none I have ever seen had "ovate"-type barrels where the rib was formed as part of the barrel.

Engine turning refers to the wavy lines on the barrel rib.