I bought this frame off ebay a few months ago as my winter project, it was listed as a Murray / Serotta, but it does not have any markings, other than the fork crown and the number on the dropout. I think the paint and decals are original, they are very beat up, but look ok in pictures (1/2 bottle Testors Gloss Red!) It does have very aggressive geometry, the tires are 19c and there's not much room for more. The components are not original, but came from a similar period track bike.
I think some other forum members have similar bikes, I was hoping someone could tell me a little more about it. Thanks!