I know that the early Marlin 1897 22lr frames were case colored, but I have a latter one made around 1910-1915 and wondered if they were case colored all the way through to the end of their manufacture. This frame shows no case colors on the outside or inside, hence the question.
Thanks

Just found out that they were case colored all the way through production, so the blued ones I've seen are incorrect restorations.