Russian Soviet Order of Red Star. Comes with original silver screwback nut. Unresearched, however, comes with 3 photos of a veteran supposedly the recipient of this Red Star (of course, without actual official research, we cannot confirm if this veteran has in fact received this particular star, but it's very likely).
Good vintage condition, enamel is missing on one of the arms of the star, but no repairs of any kind. Scarce very early order, great research potential.