Martin Harriman wrote:
>FWIW, the badger plane illustrated in Ellis is of the Kia (tm) variety:
>plain as dirt, with a skewed rabbet-on-one-side iron.  As far as Ellis
>(carpenter and joiner extraordinaire) is concerned, the plane's only use
>is cleaning up Huge Monster Rabbets which you cut by some other means
>(probably firmer chisels, hackety hack). [...]

Likewise, in his example, Jim Kingshott uses a badger to remove the 
bulk of a monster (~1in deep X 3in wide) rabbet as part of a window sill, 
the inner edge --and depth-- being first established with a plow plane
(and the final clean-up done with bench planes).