20x128 Case ID - "PS" over "W" in circle


I have an unused steel 20 x 128 Case that looks to vave never been used. It is headstamped “777” at 12 O’ Clock, “Oe” at 3, “69” at 6, and. “PS” over “W” is a circle. This circle is not joined at the top and bottom, appearing to be made of two brackets. Where was this case made. Is “69” a 1969 date?


It is made in Liechtenstein by Press & Stanzwerk in Eschen for Oerlikon (Switzerland).