Ever see safeties like this?

Looks like someone used a couple of 16 penny nails.

Yea that was my first thought

Mine 2

1962 called. They want their safeties back.

When was the last year for those square cornered traps

What do they call that ...”The Canadien Bend “ of something like that

Sure looks that way dont it.
I've used 330's for many, many years and have never noticed safetys like that.
But maybe i missed that era?

Nope
Not for me

That is an old series one trap.They are still certified for beaver.The safetys look like made from nails.
I have done that before.
I still have a few left.Important to have strong springs,many have very weak springs from many decades of use.
I use the ones I have left for nuisance beaver when there is a chance of bears taking the trap with a beaver in it.
If I was setting those series 1 traps for fur it would only be in submerged sets where beaver will drown.
Otters can escape from those traps especially if the springs are weakened.

For sure
I personally don’t like those square jaws but they’re ok if you change out the springs

the ones that came later were called that because of the jig and jog

Then what bend was the Montgomery #600's bend?