Framed hooks on size cards- years ago, when you wanted to buy hooks, you could go into the bigger tackle shops and they would usually have a folder full of these hook cards (Mustad Hooks)- if you weren't sure of the style or size you wanted, it was easy to look at the folder. Hooks were then either 'counted out' by the salesperson (usually sold in multiples of 10) or by the box, which were by the 100. Boxes were cardboard with waxed paper liners to prevent rust
Top left "Limerick" still in my opinion the best hooks for ganging, next right the popular gang hook in centre '4200'- 4190's on left of them regarded as "Standard" hook. Below left "French" pattern 540, the 542 (same hook but double strength) still popular "Pig" hooks. Bottom right are normal strength "Suicide" pattern, now commonly known as "Octopus" pattern (Octopus was actually a brand)