Marlin Firearms Collectors Association

Picked up a Marlin 1893 with a 32" barrel in 32-40. Round barrel, button mag. This is the first 32" barrel I have come across. All I have is my personal observations, so trying to get a idea of the rarity. TIA

Looking for a reference book(s) on the Marlin 1893/93 and Marlin 1894/94 models. I have Brophys book but I have more questions than answers and does not have the detail I am looking for. Any suggestions?