This is one of the nicer mixte frames I have seen. If it was a 53-54cm, or even up to 56cm, I would be tempted, even though I already have a nice mixte. Mine is a 56cm, traditionally, too big for me. AS stated above, no worries regarding standover, so with a Velo-Orange Left bank handlebar and 8 to 100 mm stem, the fit is spot on for me.
The framsets make for very versatile bicycles. My Madison Revel Mixte, 531 Reynolds, was designed for 27" wheels, with 700C wheels there is plenty of room for tire up to actual 38mm width. It has become, maybe, my favorite everyday ride.
I seriously believe, if you are in the market for a mixte frame set, this R E W Reynolds would be top of the line for mixte frame set quality. Not definitive, but I believe the size would match up fine for a person 5 feet 5 inches tall.
The only drawback is see, is the horizontal rear drop outs. That can be negated with good internal cam qr skewers.


I usually ride 53-54cm. This is 56cm, with the upright set up, it fit is wonderful, the ride is "oh so" smooth. It now has silver wheels for the classic look.

You do not state the asking price. The above Madison Revel, '77 or '78, I purchased last year, price including shipping from London, Eng to Delaware, was $165 usd.