Thanks Capt,
In responce to Peters request for a photo of my #11

Peter,
There are some additional notches along the top of the blade.
I've shown it to a few people, and it's not clear if it was done at the shop or afterwards, just the same, it's a oldie but a goodie!!
Included here is a shot of my user, I keep it clean. Also, as I was looking at them both, I noticed quite a difference in the grind of the newer blade, and thought it to be interesting enough to show side by side.
Can someone speak up on the changing grinds of this model...
:-)Rocky