Hi Folks,
I robbed our oldest son's toolbox to temporarily put together the No. 3 plane I picked up. It is a harlequin because not all parts are specific to a given type study. Stanley was known for using parts from earlier planes to use up stock. Based on a flow chart I used my plane is a hybrid of types 8 & 9, meaning it was produced between 1899 and 1907.
I didn't like the frog's condition so I pulled one from my parts bin. The depth adjusting screw uses right hand threads so this frog is a type 5 - 1885 to 1888. This will create some issues because Stanley used left hand threads for their adjusting screws beginning in 1888. My one other metal bench plane is a type 7 1893 to 1899. This means each plane's depth adjuster is the opposite direction from the other.
The horn on the tote (handle) is broken off and the tote itself is cracked through, so I replaced it with another one. This works out well for me not because the tote is larger, but the older plane uses a smaller (1" dia.) adjusting screw which creates more clearance for my hand. The blade I have is old and pitted about 1/8" from the edge so I will be getting an after market blade to replace it.
I'll still need to get a cap iron (chip breaker) and lever cap so I can put my son's plane back together.
Probably more information than you wanted.
Dennis