Were there any routine occasions where a group of NCO's might travel in a group, say to meetings, etc.? I wondered about that after I got my Eduard US insignia set, and thought of the idea of a group of NCO's being checked by a lower-ranking MP policeman.

You bet! I hav a meeting every monday with the Battalion Sergeant Major, all the First Sergeants and many other Senoir NCO's. This not only happens in Garrison. NCo's gathering together happens in the field and in combat. Could be as simple as a Platoon Sergeant gathering up all his NCO squad leaders to brief a patrol.

Thanks!

But I was wondering if a scenario where they travel in a single vehicle, say a small truck, would be feasible to depict, if they might be going anywhere beyond walking distance. I'm thinking a WW2 scenario.

Well, generally NCO's all hang out together during down time. Anything from coffee in the field to a 24 hour pass. On base we'd all go to the NCO Club or to town together. For your scenario, a vehicle full of NCO's on thier way to town, stopped at an MP checkpoint would be likely. Or a vehicle full of NCO's on base on thier way to or from the NCO club, pulled over by an MP could be interesting and all too common!

NCOs going to be briefed by the CO before an operation, assault, etc. would be very common--especially if a sand table is involved. That would be a diorama in a diorama of sorts.

Very interesting information, folks! Thanks!

On a related note, my Eduard set shows two sergeant ranks with a capital "T" in the space between the upper and lower sets of stripes. Googling didn't tell me anything, and it does not signify (as I originally assumed) technical sergeant. Could anyone tell me what those ranks are? Thanks.

Well, "tech sergeant" is the slangy term. They were technicians, sort of like the later specialists grades. They collected the pay and were expected to be proficient in their jobs at their pay grade, but they generally were not thought to be supervisors or leaders (though in reality, most were). The top grade technical sergeant was three stripes up and two down with no "T" in the middle, what we called a platoon sergeant in the 70s or a sergeant first class today.

Don't know what you Googled, but I found these in one try Googling "U.S. Army insignia WW II."

http://en.wikipedia.org/wiki/United_States_Army_enlisted_rank_insignia_of_World_War_II

http://www.tioh.hqda.pentagon.mil/Rank_page/History_of_Enlisted_Ranks.htm

http://www.sproe.com/r/rank-enlisted.html

Actually what I Googled was "sergeant", which listed the various NCO ranks, and links to them in Wikipedia, for different militaries, including the US one. Guess I looked from the wrong angle.