Older browning fixed choke question

[wheelin_ca]

Does anyone know for sure the barrel markings to describe the choke in a browning bps?

I beleive ** means modified, and just want to make sure

Thanks

 

[Mount Sweetness]

* full
** mod

 

[wheelin_ca]

thanks

so *** is I/C?

 

[kamlooky]

Full: *
Imp Mod: *-
Mod: **
Imp Cyl: **-
Skeet: **$
Cyl: ***