There were several companies that sold infill castings.
I expect this is surely one of those.
My guess is, the original creator didn't know enough about planes to 
start with, and made his throat too wide. (I have done this myself when 
I was starting out)
   Then when he did figure it out, he realized all he had to do was line 
the blade bed with brass, and closed that throat right up.

People are always wanting planes to be factory planes. I guess those 
have higher value on the market.

But I love homemade. Custom made, artist created, if you are guilding 
the lilly.
But homemade means the most to me anyway.

http://users.snowcrest.net/kitty/scott/lilsweet.jpg

yours scott

-- 
*******************************
    Scott Grandstaff
    Box 409 Happy Camp, Ca  96039
    scottg@s...
    http://www.snowcrest.net/kitty/sgrandstaff/
    http://www.snowcrest.net/kitty/hpages/index.html