antique hand saws, lot of Henry Disston saws 1860s medallion thumbhole handle

Lot of three antique Disston hand saws. One of these saws has a thumbhole handle and a medallion from between the world wars (Disston - Phila), another has a medallion that dates to between about 1865 and 1871 (H. Disston & Son.)and an etched blade (and initials on the handle). The third saw's medallion dates to the later 1800s (H. Disston & Sons).

The saw with the thumbhole handle has two extra saw bolt holes that go right through the handle (so this may not be original?). The third saw has had one of the bold peened over a large flat washer.

These are all worn and tarnished with age and light rust.