Dave,
Just remember that when the Americans came here were almost never if any spiked helmets in the front lines. This was probably picked up after hostilities. Read this citation found by Keith Gill.
Friday Feb 7, 1919 THE STARS AND STRIPES newspaper, Page 1, Column 1:
"85,750 Shiny Ones on Way to American
Prussian Guards' Helmets will help sale of Liberty Bonds
The doughboy guards at Coblenz who kept the keys to the German warehouses where 85,750 Shiny Prussian Guards helmets were stacked are restored to good nature. They eat normally, and no longer dream of great helmet robbery mysteries. For the helmets are out of their custody at last and on their way back to the States. The warehouse keys arent't needed any longer. The helmets are to be handed out back home to buyers of bonds of the Fight Liberty Loan.
Meanwhile, traders on the AEF souvenir bourse are eagerly watching the tape for the first transatlantic quotation on Helmets.
Word of the 85,750 helmets in one buiding leaped back through the AEF almost before the advance guard of the Third Army settled in Coblenz. Mails from the rear areas of the AEF to the Army of Occupation grew unaccountably large. Every man in the A of O had from six to 60 friends whose latest letters always said after speaking pointedly of lugers and mausers and iron crosses: "And of course I am relying on you to get one of those 85,000 helmets for me."
The pressure of visitors to the warehouse grew so strong that the chief salvage officer at Third Army Headquarters posted a big sign: No More Helmets Given Out." (The citation was found by Keith Gill.)