Looks good so far. No red flags. Be useful to know what the band stiffener is made of. If its celluloid, then taken with all the other visible attributes, I'd say its a good one.
53?? Wow! A kid or a Pin head....no Wonder it's in such nice shape! Looks great on display, at any rate. Nice find!
"Much that once was, is lost. For none now live who remember it."