This has to be one of the earliest Ludwig & Ludwig Catalogs.... Firstly, no sets, trap sets, or combinations of drums...No tom toms either....
The one snare pictured is the only model and I personally have only seen one example of it on the Internet...
1912 Ludwig & Ludwig Catalog
[IMG]http://www.vintagedrumguide.com/images/other_stuff/bill_ludwigiii/ludwig_1912_4_th.jpg[/IMG]