Originally Posted by JohnDThompson

The BB shell looks like a sand cast part. This was pretty common BITD. There's a lot of hand-work to make it look decent. Cinelli really raised the bar with their "Microfusion" castings in the 70s, and nowadays you don't see those gnarly old sand cast parts too often. Dropouts are stamped, again, pretty common BITD. And lugs would get a lot of hand re-working as well to get them looking decent.