I really don’t know if we’re going to be able to put an accurate date on this frame. While this bike is certainly beautiful, it’s been repainted and stocked with parts from various years. Some of the transfers are vinyl. Look at the TA bottle cage, it’s not strapped to the frame with metal straps but bolted into braze ons. For all we know none of this stuff is original including the head badge. I like this bike a lot and I love seeing it here, these are interesting parts and the build is well thought out. I don’t mean this as any kind of criticism and I’m no expert. Many people here certainly know better than I do. Whatever year it’s from this a nice find. I’d still love to see a pic of the entire bike and maybe a pic of the dropouts, both front and back.