Found a like new in the box 4 cavity mould for what appears to be pistol mould and I can not find any reference to it in the Lyman books.
# 389417
I found one note about it on another website, should be a .390 diameter, 167 gr round nose, plain base.
Looks like a shortened version of the Lyman # 386178, for the 41 Long Colt caliber.
An info ??
JW