Here are some fillet-brazed Ephgrave frames. Although he was famous for his ornate lugs, Les Ephgrave did a lot of fillet-brazing on racing bikes, whose owners didn't care a fig about fancy lugwork. Both sets are of frames with their original paint, built around 1961. The first set (red road frame) shows first-rate brazing and third-rate paint prep: all the paint has fallen off the joints. It is kind of cool that it did, because you can see just how awesomely good old Ephgrave was. It is hard to tell from the photos, but there are no file marks on the fillets: he did it all with heat.
Ephgrave 1961 road frame, fillet brazed - a set on Flickr
The second set (gray track frame) is of a bike made at the same time. Its paint is in good shape, and it shows how nice a smooth fillet job looks under paint.
Ephgrave track bike, fillet brazed, 1961 - a set on Flickr