Leon, is pretty accurate about the prices. They tend to "start" in the $75-100 range for beaters and go higher for nicer condition and higher demand players. I have seen fewer Haffner's but they are both pretty similar in the realm of scarcity. In the world of E121-like bread issues, they are tougher than Holsum's (both types) but not as hard as Clark's. I won't get into Koester's here...-Rhett My E121-like collection: http://www.starsofthediamond.com/e121.html