On Fri, 17 Apr 2015 23:37:07 -0400
Bill wrote:

Yes, it's not easy to see the internal design and the quality of the
steel. That Hand Plane Book, by Hack, is a good read, with great
photographs. I don't think it will directly answer questions about
value, but it may heighten your interest.

will add to my reading list
but it seems the list is outpacing me
but i still keep a list anyway