I searched for about ten years for a Marlin 30 - 30 with a straight grip, and finally found one on GunsAmerica. It has a 20" barrel and the serial number is 20xxxxxx. This makes it a 1980 year of manufacture. I've read that the Texans had 18 1/2" barrels, so is mine a Texan? I think I've attached a photo.