ISO information on an old stevens 410

[Hyllar]

Good Evening all
I have an old Stevens model 58 bolt action shotgun in 410
I don't know what choke it is, and it is not plainly marked. My google-waza is insufficient to find any information.
Does anyone know what markings to look for to determine its choke setting

thanks in advance
-Chris

 

[tiriaq]

Probably full.

 

[kevin g]

Tiriak is probably correct.
Lotsa them oldies were choked full..esp in the 410 ga...needs something to give the little shot column some more range & OOMPH ! Restricting the choke was the answer.