According to a dating guide assembled around 2000/2001, the lugs changed from B&B to beavertail around serial number 2700. However, those were estimates based on what had been seen and recorded up to that moment and Rogers really was all over the place with the use of labels. That guide also indicates the last of the Cleveland PowerTones had a serial number of 15xxx. I have one very high at 15927 (COB), one 16170 (pearl) and one at 17400 (pearl).
In any event, those lugs look original to the drum, but the strainer may not be. At that serial number (2543), you would normally expect to see a clock-face strainer (though I find the newer strainer is much easier to use and that could be why it was replaced). The bottom rods look to be original, but the top ones don't appear to be Rogers rods for a snare drum during any period of the 60's. I also don't recognize the tone control knob as being Rogers from any period of the 60's or beyond. In that serial number range, some of them might still have had the tall hoops, but yours appears to be those that eventually became the standard height for Mylar heads. Overall it looks very good. Should be a cracking snare drum.