This is a Fine Cast model from Games Workshop. Like many I've never been a fan, not quite as detailed as a metal casting and certainly not as resilient as either plastic or metal.
But if cleaned (no easy task) and primed properly a reasonable paint job can be applied and for a while it was the only way to get older, rarer unit types.
This recently finished fallen marine is part of the Word Bearer contingent coming to Morgoth XIII.
