I always believed it to be a 1948 due to the grease zirks facing to the outside and the location of the front brake cable retaining clip tapped hole in the rigid leg.
I’m asking cause I’ve found what I believe to be "period correct" handle bars to replace the bars I just threw together four years back to get this thing on the road. I’m one of those guys that want to ride first and find the correct parts later, when/as I can. I’m hoping I found the “period correct” handlebars after waiting four years.
The springer in the photo is an “In-Line” springer, but I would like to know more about its year of birth if you can tell from the photo -Steve