mnrivrat: Yes, it would be a model of 1953 .22/32 Kit Gun.
Standard Catalog of S&W notes serial number 11000 in 1955 and 52673 in 1959.
As model numbers were introduced in 1957 Your gun will be from 1955 or 1956. I would guess 1956 as production seemed to be around 5000 units a year, going by the serial ranges recorded during that period.
SCSW states that the upper side plate screw was supposedly deleted at serial number 11000, but it is found on guns with higher serial ranges, which again suggests 1956 instead of 1955.
The .22/32 kit gun was built on the improved I frame with a hammer block safety and coil mainspring, no strain screw or trigger guard screw. 2 or 4 inch barrel, serrated front sight, adjustable rear, serrated trigger (later changed to smooth) semi target hammer, blue or nickel finish, flat latch, diamond walnut grips, available in round or square butt.
There are rare two inch guns with fixed sights. Serial number should be on the butt, cylinder face, yoke, right grip panel and barrel flat.