Here is a old picture I found on my computer of the first group of multiparts I found. Got these off craigslist for free back in late 2010. Most of them are Ohio Brass M-2611As from the late teens or early 20s. There are also some 1938 OB M-2613s in there, some of which have the copper radio treatment. This find got me into the bigger power pieces. I had these stacked up at the time because I didn't even have a display yet!