I'm a big fan of hot-metal typography, as my stack of Ludlow typeface books will attest. So it is with great pleasure that I can recommend Mark Simonson's Metallophile Sp 8 font. Veer describes it as a . . ."re-creation of a sans serif face set on a 1940s-vintage hot metal typesetting machine. Designed to look great at 8 points, where line weights start to disintegrate."
It comes in two faces (regular and italics) for USD $39. Download the regular and italic type specimens, or go buy it at Veer.