Not seen a Naval marked M1927 lately. Used to have 6 Air Force marked '27s, but several ran off to other happy homes. (Made one w/ a bad barrel into a "stealth" stock looking match/CQB pistol that did quite well even w/ the small sights.)
One oddity- they made all the 1927 hammer spurs extra long and sharp on the bottom- all the butter to draw blood from the shooter's hand.
The first Colt WWI (of the late 1990's- early 2000's) reproductions had a suspisiously similar hammer...