Could you show more of the clock? Is there a base cup? There's no RR stamp and I think that first showed up on some clocks in late 1949. Leveling feet showed up in 1953, but there were date stamps by then. John posted this, though his reference to dates in 1950 appears to be wrong.
Maybe Eric has some insight on the style of the pendulum. I think there are basically two, one with the smooth center column and one with a ribbed/ringed column. Not sure if there was a cutoff for their use or if they were used either/or over time.
We discussed the appearance of the smooth vs ribbed center column on the pendulum. I went through my collection of 28 Model 49s to see what the trends were. From my limited sample, it would appear that the ribbed column appeared near the end of 1952 or beginning of 1953. I do have a Schatz clock that was built into a marble case by John Bernbrock. It has no date (so pre 1952) but the pendulum has the ribbed column. I consider this an outlier as it was a custom clock.
Another thing I noticed is the wording in the circle logo. It appears that "Jahresuhrenfabrik" was used through May 1954 and then in June 1954 it was changed to "Aug. Schatz & Sohne".