Gary N.:
First, let me say that I actually read your input while drinking some "tea", since I'm not a "coffee" drinker. I think, perhaps, that I should be drinking something a "tad" stronger, after the information that you presented (LOL)!
I really do appreciate the time you took to provide the great feedback.
The reason I initially brought the question up was because I've got a Rogers WMP Holiday kit and two of the drums (floor tom & snare) have the Rogers Eagle Badge, while the other two (bass drum and rack tom) have the Rogers script badge. All four of the drums have the Bread & Butter lugs and I'm simply trying to "estimate" the vintage of the kit.
If I read your post correctly, the Eagle badge was used from either 1954 or 1955 through 1958, between 1960 & 1962, and in 1964 on Rogers' marching drums.
I'm still trying to determine if my two Eagle-badged drums are from the 50s or the 60s.
THANKS AGAIN for your input!