Any Bogner 4x12 cab owners out there??????

[recto-robbie]

I have a question for you guys,, I just picked up an excellent condition used Bogner 4x12 cab. This cab is the straight cab and has black tolex with the brown front and white Bogner name plate.

I cant believe this but nowhere on the cab does it give any OHM rating.
Im hoping some of you may know the ohm rating before I go plugging in and ruin something. Please help if you can,,,, Thanks much

 

[scotbot]

usually they come in 16 ohms.