Breda Altair Special

[cl_leg]

I am looking for some information on a Breda 12ga semi I just picked up. It says Altair Special with scroll work. Came with 3 chokes. Doesnt look lile the "hump back" older models. It looks like the newer model but no gold writing. Does anyone have manual they can scan or copy? What I need to know is what size shells I can put in it. Not sure how to post pics.
Chris

 

[VLT79]

Contact Breda directly at this link: http://www.bredafucili.com/en/contattaci

The chamber dimensions should be on the left or right side of the barrel and if not they will be on the underside of it. It will be marked in millimeters...70 or 76

 

[cl_leg]

Left side of barrel BREDA Brescia Made in Italy. Tight side nothing. Bottom of receiver 4 proof marks. No dimensions anywhere.
Thanks for the link.
C