The OP's lugs bear resemblance to some used by both Italvega (Toressini) and Univega (Miyata) but they seem a bit more "finessed" than either of those respected builders usually did to their mass-produced frames.

Now that we know it's made by a small custom USA builder (never heard of a "Galena" before) and of slight interest is that pic of the full frame shows that "Galena" graphics on the down tube used the same font that was used on Univegas (for a period of time in the '80s).

Was this builder so smitten by that brand that he was trying to duplicate one by hand?
Also wonder why the choice to use Reynolds 501 tubing instead of 531: did the Cro-Mo alloy braze up better than Mang-moly for some builders?