Mallard And Claret

[Wildfisher]

I see Fred hasn't got an answer to my point about long wide hooks just being big hooks...

They are of course, but I only use them for cod.  :

[Billy]

It reminds me of the old style Clyde salmon flies.

I remember seeing a frame of flies in Robertsons of Glasgow many years ago.The ratio of body to hook was exactly the same.
Nicely tied.

Billy

[Bobfly]

An old lady down our street we used to help out, now deceased, kindly gave me a wee box of her husband's flies for salmon and sea trout and one of them is very like the M and C you have tied here.
Obviously a long standing fish catcher pattern in those proportions.