Stanley Home– Type 1 – Type 2 – Type 3 – Type 4 – Type 5 – Type 6 – Type 7 – Type 8 – Type 9 – Type 10 – Type 11 – Type 12 – Type 13 – Type 14 – Type 15 – Type 16 – Type 17 – Type 18 – Type 19 – Type 20 – Type 21 – Bases – Cutters
Type 4 1874-1884
All features of TYPE 3 except that these are now equipped with the standard full size frog as TYPE 2. Tip of “Y adjusting lever no longer rounded.
— Frog receiver is enlarged but still low & milled smooth. The number 73 cast in bed behind frog receiver is apparently just a foundry’s casting code because #2’s of the same vintage have the number 71 cast here.
*Flat head cap screws now used to hold frog.
* #5 thru #8 have rounded edge on front of raised receiver for handle.
**No Lateral Adjuster
**Low front knob
**Bead at base of knob
**Plane Size Not Cast in bed
**”Bailey” Not Cast in bed
**Small depth adjuster nut (1”) recessed
**Depth adjuster nut stamped “BAILEY’S PATENT”…2 patents
Aug 31 1853, Aug 6 1867
**Right handed depth adjuster nut
**Foundry numbers – “73”,”71″ cast in bed etc.
**Circular hole in cutter at the top of the slot.
**Keyhole shaped hole in lever cap
**No logo on the lever cap
**Flat headed frog screws
**Back to one piece frog
Cheat Sheet Help: With a hollowed(recessed) adjuster with “BAILEY’s PATENT and 2 patents on adjuster it’s probably a type 4.

![clip_image002[1] clip_image002[1]](https://i0.wp.com/www.timetestedtools.net/wp-content/uploads/2017/06/clip_image0021_thumb.png?w=800)



![clip_image006[1] clip_image006[1]](https://i0.wp.com/www.timetestedtools.net/wp-content/uploads/2017/06/clip_image0061_thumb.png?w=800)
Based on Rogers Smiths PTAMPIA Vol 1
More type 4 Examples