I have a 7 line #2811 with original factory 1st gen Beavertails. I know there are quite a few B&B drums with higher numbers. I also know that 2811 badge could have been sitting in the tag bin for several days, and just got passed up while they finished out the B&B shells. Still, I haven't seen a lower number on a Beavertail Dyna-Sonic.
Ive never seen any drums in the 2700 range (that I can recall) with Beavertails.
I also have 7 line #10407 (from Kelly Smith) and 5 line #13723 (purchased as a bare shell, all parts came from #12938 which was damaged beyond repair by a stairway). There is no noticeable weight difference between those two drums. #2811 is just slightly heavier (really just slightly), however it is missing the original top tall hoop. I have been looking for one of those for almost five years.
Comparatively, I have 1975 Fullerton era #53004 Oval Badge and 1977 2nd issue, front center badge Big R era #D716061 (my only snare for 20 years), #53004 is heavier than the front center badge Big R issue drum. All First Gen Big R era Dyna-Sonics were made with Oval Badge era shells, numbers into the higher D14000 range. The only one of these drums I own is a 6.5 and not in this comparison. First Issue front center badge Big R drums did not have a dampener, (high D14000s-D42000 five digit serial numbers). There are a few drums in the mid D30000 range with dampeners, but very few. These first Big R tags (five digit D series) were also very fragile and the facing would separate from the backing. They are also the Big R badges with the somewhat golden hue to them.
6.5" 1975 #D0413 Big R Oval Badge Shell is very close in weight to 6.5" 1981 front center badge Big R Polished Brass Shell #RD980347 (thanks Dan C). This seems to indicate the 6.5 drum shells of the Big R era were possibly produced to the same shell spec as the Oval Badge Fullerton 6.5" drums. Conversely, the 5" Big R shells, and, or, possibly the hardware was lighter than the Fullerton era Oval Badge 5" drums. I would have to strip two down to bare shells and compare weight.
Comparisons were done without a scale.
Not much difference in sound though.