Stanley Type 13

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Type 13      1925-1928   (More Examples)

All features of TYPE 12 except U.s. PAT. APR-19-10 only marking cast behind frog.
— K K. STANLEY in notched rectangle logo now cast on lever cap.

**High front knob
   **Plane Size Cast in Toe behind knob
**”Bailey” Cast in Toe in front of knob
**Left handed depth adjuster nut
**One patent date behind frog      (One patent date is found on type 13 & 14)
      — “US PAT” & “APR-19-10”
**Keyhole shaped hole in lever cap
**Stanley logo on the lever cap
   **Frog adjustment screw
**Just “STANLEY” On Lateral Adjuster
**Cheat Sheet: A high knob and one patent date AND without the   raised ring  for the knob, is probably a type 13.

Check the rest in case the knob was replaced.  
**Note some type 13’s frogs were painted orange

Based on Rogers Smiths PTAMPIA Vol 1 

Other Stanley Type 13 examples

Stanley #3 Sweetheart Smoothing Plane. Type 13.

Stanley #3C Sweetheart Smoothing Plane. Type 13. Original rosewood knob and tote. No cracks or repairs. I have only oiled them. Lightly cleaned Note some green paint still visible. Note the chip from the rear of the side. Fully tuned, sharpened...

Stanley #4 Type 13 Smoothing Plane

Stanley #4 Type 13 Smoothing Plane Completely disassembled and lightly cleaned and oiled.Furniture waxed.Just sharpen and go More Stanley type 13 Examples (My #4-082823-3)