Okay, so I just picked up an old Marlin 90 O/U in 12gauge for a song, and its a great old gun.  I have a drilling 16 X 16 X 9.3X72 that I like except for the 2 1/2" chambers.  What is really getting my interest is the fact that Marlin supposedly made the 90 as a combo gun in 12ga/30-30 and maybe 16 or 20 ga/218bee.  Anyone ever see or have this gun in a combo?  I think I'd like to find one.  I have a Tikki in 12ga/222 that is about perfect for turkey, but an old hammerless combo gun would be great.
Mike