Shawn A. speculates the tailcoat was cut down from a longer coat - and I find that theory intriguing. Perhaps cut down from a Frock coat of some sort (think Abraham Lincoln style of coat). Check out that wayward button way up there on his chest (and the dangling threads of buttons past). Either way, here's some detailed photos from Mick (click to enlarge). Also great shot of the Winklepicker boots, his single spat, and the lacing on his right leg. And did someone split their pants? Hmm.
Bruce M. believes it's a vintage tailcoat from the very early 20th century and has provided this example of a tailcoat pattern from that era. He says "If you look closely at the photos, you can see it was a vintage tailcoat, probably from about 1910's. It has the characteristic 'strap' on the tail skirt as and center front seam, typical of tailcoats made from about 1810 to the 1910's. It looks like it was probably made for someone slightly taller than Richard O'Brian, so a hump could go across the shoulders. The edge of the tail was either worn and/or distressed to look very used."
