This was a kit sold for children 12 and up, which let them create metal soldiers and other figures. The kit included a crucible, a heating unit, and lead ingots that you would melt in the crucible, to then pour the molten lead into molds.

I assume you could then paint the resulting figures, if you wanted.

Here is a photo showing those components. The crucible and electric heater are on the right. I suppose(?) you would file or trim away the flashing and pour-funnel from the final cast figure, but this photo shows the result straight out of the molds.

Ages 12 and up.