Here's a frame that I bought from
JunkYardBike a few years ago now. The photo is his, when he'd built it up with a (nice) "mishmash of available parts". Serial number on outside of left rear dropout is 1773730, and also stamped on inside of right rear dropout is 64016. I guess it didn't tickle his fancy enough, but I'm looking forward to building it up -- it has clearance for 38 mm tires at 700C, and 42 at 650B, so we'll see what happens. I believe it's a 1973, based on others who've posted "LCs" with similar colors in this thread and
this one.