Camp Owl Calls

[Cruiser]

Over the years I have accumulated 3 Doug Camp Mighty Owl calls in my collection. Wonder if anybody knows which versions are oldest? Thanks

[Zobo]

My educated guess would be the bottom is the oldest, late '90s maybe. The top one with the script probably around '04. But don't hold me to it, i'm basing this off some of the box calls I own.

[Cruiser]

Thought that might be the oldest; best sounding , as well
Thanks