Wow!  I think you’re right on target.  I was reading yesterday that the NYC company was raided by the Feds in May 1861 and a bunch of their items were seized because they were being sent to the South.  I guess they didn’t want to lose the money from the sales.

Just to say "ditto", but to maybe add some more discussion to the mix.  I have seen at least 2 versions: a flat back and a "divot" or hollow back (like this one).  GENERALLY speaking, the versions with the hollow or divot are mostly vintage (IMHO).  Another thing is the cammed pin and hinge.  That is also a good sign. But some of the other versions have the type of pin and hinge that you would normally see on a Lampl or Bell made wing. While there are a fair number of fakes, those badges almost always TEND to be of the flat back type. But take this with a grain of salt, as many good wings were also flat back types.   Its rare to find hallmarks on these ATC wings, although the ones with the WH in a shield (Whitehead and Hoag) are often the ones faked.  But then again, there are some WH-marked wings that I feel are good.... These wings also show up in a variety of finishes that further muddy the waters.   But as the other fellows say, these wings don't give me heartburn Visit Bob's site and there are a number of good threads on this forum on ATC wings.    

My last trip to the 45th Museum, the counter for sales had these 45th as a give-a-way (one per customer). But that was years ago.

As per tredhed2   I might add the minis could be found worn on Garrison Caps and Class A IKEs and later Class A AG 44 Coats as well as Dress Khakis in the manner of a Patch Type Crest.   Such as here on a late 50s into 60s Khaki Shirt, an Officer no doubt, but just because an Officer did this doesn't mean only Officers did it, they didn't, EMs did it too,

While going through my non-SSI Engineer collection, I remembered these two from Canada, but I have yet to see other patches from this company since purchasing the patches.  The backing on the RCAF Station patch is the same as Fort Pepperrell.

This is a recent estate find. I believe it is an original 60th Fighter Squadron (AKA the Fighting Crows).  They first saw combat in the Mediterranean theater and then moved to the CBI theater (assigned to the 10th AAF).   This estate included a CBI blood chit (which I didn't get) and several mint CBI bullion patches. The squadron patch is multi-piece and painted leather. I think that this was probably from a 10th AAF pilot who brought home some souvenirs.   My research suggests that this was designed by Walt Disney artist Hank Porter in 1941.    As you can see, it is just about mint and was never sewn on a jacket.  The only "flaw" is that some of the paint on the character's toes seems to have rubbed off.  Although it could have also been made that way, it's hard to know for sure.   But I am not a patch collector, especially, so I could be wrong.  I am open to hearing other input.

A Modern One   Troops of the 67th Signal Battalion form up a a Living BOS. At Fort Gordon Georgia I believe.

I just saw this on eBay (Photos 1 & 2) and kind of a late warning as there is a little less than an hour to go but this paratrooper wing is in my opinion a US paratrooper wing produced in Thailand and not a WW2 era piece.   It s not British or Aussie nor is the pin back design Chinese or Indian.  Yes it is theater made but kind of cheaply made without much age to it and I'm wondering if these were ever worn by US personnel.  The ones that I remember produced during the Vietnam War have a different look to them (Photos 3 & 4).  However Thailand produced a lot of copies of most everything so who knows.  I found a photograph of another one minus the finish (Photo 5 & 6).  The bidding is up to $67 with 15 bids.      https://www.ebay.com/itm/157979066638?_skw=jump+wing&itmmeta=01KV454K0BTDPDFNE4JADV43EX&hash=item24c849410e:g:J14AAeSwwC5qJeN5&itmprp=enc%3AAQALAAAAwGfYFPkwiKCW4ZNSs2u11xAbSPUKOG%2Bt0s6jGHbRK8k0wCBXJV9I50MKxjKCK0VPl49KlFqUfwpukrUZjhwbpoy%2Fttp5yxHe120u%2F5wwQkX1YAQVC2hH3StK5%2FE4jgJk4ocQl6NMVrozFeaBsiG7ZrHVg1aqn08Q6TyEeTXv95zlESf9nxqQJl1RKRR1ggx2Ry%2BNfSJHfIZ%2FL%2BQCwV1HIS28EVvLpkzqK6m%2B0agUZ5Sd97mNdApgd--4d414zxkFEg%3D%3D|tkp%3ABk9SR7iwkoXZZw    

Vintage,   Without seeing the full jacket nor the size of the actual "C" it looks like an outerwear jacket or coat.  I believe the "C" stands for "CONVICT".  A great deal of WWI era surplus material was purchased by county, state and smaller prison systems for use by their inmates.  I think this would be a work wear jacket for a "roadside crew" to identify them as a Convict so the general public would know that they were on a work detail back when physical labor was part of the punishment for their crimes.  These were "good behavior" inmates or "trustees.  I once saw a gaylord full of WWI era jackets with "C" on the front and back in the 70's.  The "C" on the back was around 10-12 inches in height and the front around 4-6".  They were from a Georgia prison system.     Not saying I am right but hope this helps.   OD  

Always love these types of "bring backs" as it shows an excellent tale of history. I particularly love the Nambu.