What’s with the zipper that runs along the entire bottom hem?
To fasten jacket to the matching pants.
Yes, Roughwear has similar seams. They had a patent for this dual entry pocket, but have a different look, as you mentioned. Top grain tag makes me think Roughwear. I can confirm Roughwear made jackets for Wards, I can't for Monarch. The back design is not familiar, though Roughwear did have fancy backs.
Omg!! I'm saddened, incredible deal, gone.
Hilarious!!
Funky Old Patina
When I first looked at the jacket, I assumed it was for a zip in liner. But it doesn't go all the way around. Certainly its for matching pants.
John Lofgren Monkey Boots Shinki Horsebuttt - $1,136 The classic monkey boot silhouette in an incredibly rich Shinki russet horse leather. 
Grant Stone Diesel Boot Dark Olive Chromexcel - $395 Goodyear welted, Horween Chromexcel, classic good looks. 
Schott 568 Vandals Jacket - $1,250 The classic Perfecto motorcycle jacket, in a very special limited-edition Schott double rider style. This thing is literally wider than longer. 22" back length on a 46 size jacket is asking for a lot. But that is how they were cut in those days.
This would be perfection for me if it were my size. 21.5-22" p2p with a 21 or 20 or even 19" back is is my dream.
19" back?? You're 5'7", right?
I am. I also wear some high waisted stuff. 19" wouldn't work for my jeans, but it would work with my wool trousers and chinos.
