![](http://flyfisher.org/wp-content/uploads/2019/09/allcock-unknown-hook-web-1024x768.jpg)
With blind-eye (and spade) hooks, you could get hooks with a gut attached: in the beginning silk-gut but later with nylon. A lot of these were for bait fish, but also for trout and small salmon flies.
I have added a new section to flyhooks.org to document some of these that I have in my collection: https://flyhooks.org/togut