The 1965 Marlin 39A front sight hood was the round hood not like the newer wide scan hoods you will pay dearly for a round one.
I picked up a 1950 39A a few months back it didn't have the round hood but I found one years ago and it was waiting in my deck drawer for the day I found an old 39A it's on it now.
There is one on eBay now for $75.00
Second that, I picked up,a Mountie about six weeks ago, missing the sight hood and bullseye. Bullseye was easy, just glued it in and then trimmed and filed to fit. Sight hood was more difficult, Finally found one one ebay and paid about $65 for it, a little over 10% of what I paid for the gun. All three of my older 39a models, and dad's old 336 SC have the proper round hood, which looks better than the later flat hood. The flat top hood will work but having grown up with my 68 year old 39a and Dad's 336 , just do not look right.
