Many years ago when I was a lot younger, I used to tie "broach" flies to order. They were'nae cheap I can tell you!
Most of these were for women who wanted fishy jewellery and I, modestly, did a really good job on them. For once these flies were not for the fish so they had to look the part.
I don't recall where I got the "hooks" from but they were about a size 2/0 and gold.
That chappy in the catalogue photo looks to have spent all his money on his tweeds and then had to steal his grandads rod. He does look lost in thought, probably thinking how big a twat he looks!