Hooks in Odd Number Sizes Question

Hi All,

There are hooks on sale on Ebay that appear to be quite old. These are mostly Mustads, and I have bought a few, although not the odd number sizes. Some of the odd size numbers include for example: #7s, #15s, etc.

From the hook boxes, it is clear that these are pretty darned old hooks, and also some of the hooks are models that have apparently been obsolete for quite some time. (From the article on hook sizes in the home page, it appears that odd number sizes may still be sold in Europe to some extent.)

The question is: how many years has it been since Mustad sold odd number sizes in the US on a regular basis? I have not been tying long enough to have a clue.

Thanks and regards,

Gandolf