Buck 309 question re blade styles

[Corso]

I was wondering if anyone could help me - I've a couple of buck 309's one being a Camillus the other being a recent Buck

I was keen on finding what i think was a 3 with flat grind Buck made version to get a set of three.

Have I been fooled by pictures on the internet or was there such a thing?

If there was what was the date range that these were made?

thanks in advance for the help

[bertl]

The Buck 309 was a flat grind until 1995. In 1995, the earlier knives were flat and then later changed to a hollow grind.

Bert

[Corso]

Thanks very much