Picked up this frame on eBay a couple of weeks ago.
Seller said he built it in the 70s out of Columbus SL. Overall it's pretty well made, certainly comparable to any of the mid-level production stuff from Japan in the 70s and 80s.
Currently it's stolen the wheelset from my Grand Jubile, but I'll be ordering hubs soon to give it a wheelset of it's own. Since the fork clearance is so tight even with these Veloflex Master 25mm (measuring 23mm actual) I'm pretty sure this is going to get 650b X 38mm wheels and tires. Might have to go to 32mm in the back, but we'll see.
This is my second actual track bike, the first was a too small Kilo TT a few years ago. The feel is quite familiar, but it sure is nice to have a frame that actually fits me. And a lugged frame will always beat a TIG'd one