Builders usually put those holes in the lugs so that they can see that the braze has completely flowed under the lug. On cheaper bikes they don't bother, so you can infer something about the quality of the build by the fact that they are there. But yeah, the three in a row like that is probably a signature style by a particular builder, so hopefully someone will recognise it.
Builders usually put those holes in the lugs so that they can see that the braze has completely flowed under the lug. On cheaper bikes they don't bother, so you can infer something about the quality of the build by the fact that they are there. But yeah, the three in a row like that is probably a signature style by a particular builder, so hopefully someone will recognise it.