Brand - Rauh test cap // Producer - Roland Rauh GmbH & Co. KG // Blue crown cap, Blue label, text: "EPSeal" in white, "Epseal - Sealing Compounds For The Beverage Industry" in white // Remark - EPSeal is a company that produces the plastic liner for the inside of a cap // Factory sign - R·R·K (Roland Rauh Kronach)