Vintage Marble's Woodcraft - before/after

Restoration projects like these can be very rewarding, as not only do you get to bring pieces of knife history back to life, it's quite useful to practice your skills, plus it pays for itself as generally i use the proceeds of the sale of a restored knife to buy other oldies that could use some work.
Currently busy with this small Marble's Woodcraft fixed blade, probably made in the late 1920's or early 1930's.

The knife as it looks now,

Did it's twin brother a while ago:

[mit Bildern] Vintage Marble's Woodcraft fixed blade

The difference is that on that knife the goal was to re-establish the original full convex zero grind blade geometry while at the same time saving as much of the old patina as i could.
The apex of both knives lies around 25 degrees inclusive.

A few old pictures.
The first one shows Webster Marble (on the left) together with an associate.

1916 patent for the Woodcraft model: