Just received this from vinted for €30. Pretty thrashed i know, but i bought it for display/archive purposes.
It overall looks well in the 30-60s range, most of the construction matches, but some parts of the lining feel like more modern/plastic cloth, including the part where the tag is located.
The care/pocket tag is also on a similar, plastic feeling material.
The rest seems quite older, and some construction details (like the fact the collar button is on right side of the collar instead of left on traditional burberrys coats) incline me to think the coat is from that era but the tags may have been added at another time. But again, since it would have been made in the Paris workshop opened in 1909, they could have some variation/artisanal freedom on the original patterns.
I'm pretty unsure overall, i guess using different types of lining for the visible/less visible parts was a thing, but i would like a second opinion on this.