So what did they call this jacket?

[SteveB]

I would like to add a little bit to Jock Scot's comment.
There were catalogues of clothing displaying jackets with prices, but the illustration was a small sample of the variations that would be provided when the jacket was ordered. Very few shops had more than a few samples for display, and would make the jacket, trouser, etc. to order or custom order through the vendor. In the 1950's to early 60's, most of the garments ordered from U.K. catalogues would be quite different than the image in the catalogue. This was true for me as a lad as I was very skinny and tall. Much of my clothing was bespoke, so it would actually fit me. I was growing like the proverbial weed, so my parents would order to allow for some growth from the time of order and several months later when it would arrive in the States. My mother would sometimes need to tack in some of it for proper fit. To make the garment to fit right and look reasonable, the maker oft varied the style of the collar, cuff, shoulder, and one time significantly the way it buttoned.

The reason for ordering from the U.K. was simple. Here in the U.S. the industrialisation of clothing manufacture limited you to off the peg, or something that could be cut down from an off the peg garment. To have something made longer, one had to import from a place that still knew how to make to measure.