It seems to me that there is not a real clear point of departure on the early Ludwig metal shell snares as to when they got thicker (please point me toward this info if it is available). So let me offer my theory.
While going over the early Ludwig snare catalogs on Vintage Drum Guide I noticed that in the1923 catalog they had gone to engraving the Ludwig logo on the shell instead of on the hoop as they did previously. It is my thought that if the shells got thicker at that time it was just to accommodate the engraving that was happening then (some models were elaborately engraved. If as some folks suggest, the slight thickening of the shell influences the sound, then would the elaborate etching and such effect it too?). They also started adding a little more width to the hoop (I don’t mean gauge thickness) so they could add the new flange to the bottom of the hoops, and made them from a rust proof metal then too (are those rust proof hoops brass? What is heavier steel or brass). These two changes (shell thickness and extra flange material) would of course add to the weight. So when Ludwig changed shell thickness were they consistent in maintaining that new gauge? Anybody know the various gauges of those snares, say up to 1932?
Also I noticed, as they developed new snares Ludwig appears to have maintained their best models in their catalog throughout the early years by renaming them. As an example the top of the line snare in 1924 (Top of the line to me in this instance doesn’t include the fancy engraving on the same drum) had the new strainer for that year, and the model that was the top of the line in 1923, is moved to a lower spot in their line. The hoop mount style strainer is back in 1924 on the “Universal” metal shell model. So it seems that as Ludwig came out with new features on their metal snares they relegated the older style models to what can appear to be lesser quality models but these seem to have been the best in their day. To you collectors, does this seem to be the way you see it? Am I on the right track here?