More about traditional jackets

[Tobus]

Would it be proper for me to conjecture that what we accept as the modern style of civilian jackets are actually an innovation from the post 1890 period?

Absolutely. That's pretty much general knowledge. Today's traditional kilt jackets, like the Argyle jacket, is a direct descendant of the jackets worn as far back as the mid-19th century. There are, of course, many different variations both then and now.

But sheesh, you could have picked a less controversial web source for example photos!