Here is a nice 10 inch long Disston No 4. It is in exceptional condition for being more than 100 years old.
The blade is clean, straight, and very shiny. The handle is solid with no cracks or chips, though with some marks and abrasions. There is an owner's mark on one side.
The 14ppi crosscut teeth have been freshly sharpened:
Tooth Type: crosscut
Rake Angle: 15º
Fleam Angle: 20º
Slope Angle: 0º
Tooth Set: 0.004"
