nice lugwork , what tubing would it be ?
Something fairly cheap, I imagine. Named tubing would probably have been built with forged dropouts, rather than the cheaper stamped ones seen here.
Incidentally, the fancy rings on the head tube aren't actually lugs: they don't have any sockets for the down- and top-tubes.
Calmes dans le demi-jour
Que les branches hautes font,
Pénétrons bien notre amour
De ce silence profond.