The single pin attachment device reveals it's of modern manufacture. I've seen them sold in museum gift shops, as well.

Thanks, what I assumed. Cheers, Alex

Unofficial badges that represent numbered air forces. Souvenir badges like these are often sold at air shows. That would look nice framed. 

The image of the ricasso area is not clear to me. There could be some additional information on it.    Congratulations on obtaining a scarce and desirable M1917 Winchester bayonet. Scabbard could use some tlc....   hyrax222

Hi All What are these pin badges, I just acquired this board of items and have no idea what they are? First, are they military insignia or souvenir / sweetheart items? Secondly, if they are genuine, what period would they be from? Thanks, cheers, Alex

Such an amazing thread with excellent information and pictures.

Looking for approximately 1928 dated USN Good Conduct Medal named to Eldren C. Biddle.   May have come from the Virginia area.   Thanks for looking   Bill

Very cool.

Louis F. Ackermann, Captain O-399946 Co A / 105th / 27th ID The Appleknockers Initial enlistment into the NY National Guard 1934    Knife Scabbard Reads:   Made by Percy R. Huff  Berlin, NY  Apr. 22 1944   This Huff knife has the originally manufactured scabbard (made by Huff), and some tremendous craftsmanship, including the initials of the buyer/recipient, Louis F. Ackermann.   Perhaps one of my favorite groupings.  This comes straight from the family and has an amazing story.  Louis F. Ackermann enlisted into the New York National Guard, HQ Co. 1st Bn, 107th Infantry (27th ID), 2 November 1934 after completion of his military academy.  His family described him as a “Lifer”.  He was commissioned in 1940 and is pictured as a 2nd Lt. in the 1941 Unit history of the 27th, moving to A Company of the 105th Infantry Regt..  His company commander (then) Captain William O’Brien.   Ackerman would serve four years in the Pacific, earning 3 campaign stars and two Purple Heart Medals.  He rose to  Captain in charge of Co. A, and his friend and Battalion commander was now Lt. Col. William O’Brien.  Ackermann would first be wounded 8 July 1944 in Saipan.  The previous day, he witnessed the decimation of his company and the heroic stand made by his friend, against a 3000-5000 man Banzai charge.  Ackermann nominated O’Brien and Private Baker for the Medal of Honor, which were both posthumously awarded.   After some time of rest and refitting, the 105th again saw action on Okinawa.  On 16 May 1945,  Ackermann would fall victim to a shot to the head.  His personal effects were shipped home, including his private purchase Huff knife and souvenired Japanese flag.