My understanding is that the helmet could have been handed down to any of these reserve infantry regiments. The request for this relationship came from repeated e-mails when we could use a posting to help everybody. No one ever said my lists are perfect.
Reserve-Infanterie-Regiment Nr. 29 - Aachen, Monschau, Bonn
• Reserve-Infanterie-Regiment Nr. 30 - Saarlouis
• Reserve-Infanterie-Regiment Nr. 39 - Düsseldorf, Geldern, Krefeld
• Reserve-Infanterie-Regiment Nr. 53 - Elberfeld, Solingen, Barmen
• Reserve-Infanterie-Regiment Nr. 57 - Düsseldorf, Lennep
• Reserve-Infanterie-Regiment Nr. 65 - Bonn, Siegburg, Deutz
• Reserve-Infanterie-Regiment Nr. 68 - Jülich, Rheydt
• Reserve-Infanterie-Regiment Nr. 69 - Trier