CWArtillery and I saw this Dimick bullet mold in a private collection a year ago and I was finally able to secure it. The material in the collection was mostly dug in the Deep South.
Per several articles including one in RBTR 3, the rifles were issued with numbered molds to them. This is #959 and I think just over 1,300 were made.
The bullet in the mold is a .47 caliber but the mold appears to be slightly larger.
Its the only bullet mold I own. Its handles are broken and its missing the cavity insert, but I like it!