"Tom Quackenbush" wrote in message
news
R.H. wrote:
snip
It is similar to Lyman #20098 as seen on the page below, though it's not
quite an exact match. I would guess that these would be solid and not
hollow on the bottom.

http://www.black-powder.com/BPC%20su...ulletMolds.htm

Closer to the Lyman 575494 Minie, I think:

http://www.thunder-ridge-muzzleloadi...yman_molds.htm

Can you check the diameter?

The diameter is just a little larger than 9/16" so it looks like you're
right, it's probably a Lyman 575494, thanks for the link.