This is what bob from griffin and howe was able to tell me about the gun so far
Greifelt 26752 was ordered by Von Lengerke & Detmold from Greifelt & Co. in Germany through their U.S. agent, Charles H. Giesing. The shotgun arrived in New York in June 1922 and was entered in the Von Lengerke & Detmold records on June 21, 1922. The shotgun was described as a 12 gauge Over & Under with 29 inch barrels. Other specs include the stock dimensions, weight, and type of grip. The gun was sold to a NY broker of stocks and bonds in August 1922
