This is Away In A Manger played on a B Flat cornet that was owned by the US military at one point. I was unable to figure out what branch of the military because at that point in time all branches of the military got their musical instruments through the same supply system. All military musical instruments got the same stamp on them at that time. This cornet served in World War One. It is a Holton Cornet that was built in Wisconsin around 1915.