M210926a
Cover-up transfer with "PORZELLAN EXTRA" above the initials "CSLSA" and "TSCHECHOSLOVAKIEN".
The cover-up transfer mark shown here has, thus far, only been found on items produced by the former Springer & Co. factory in Elbogen. Visible remnants of the original mark reveal "EPIAG" above the raised sword arm and "CZECHOSLOVAKIA". There is also a plain ink-stamped version of this mark next to the cover-up.
And before anyone cries FAKE! : the term "TSCHECHSLOVAKIEN": is one of two older forms used in the German language. There is either Tschechoslowakei (emphasising the state itself) or Tschechoslovakien (emphasising the area/region). The spelling fluctuated, using either "w" (German influence) or "v" (international/Slavic influence). Over time, common use had shifted towards the terms Tschechien (state) and Tschechei (area/region). Due to the political changes, former Czechoslovakia in 1993 transformed into the Czech Republic, in Germany known as Tschechische Republik. So yes, the term "TSCHECHSLOVAKIEN" is valid, even if it is a rarely used non-standard hybrid.
M210926a
Cover-up transfer with "PORZELLAN EXTRA" above the initials "CSLSA" and "TSCHECHOSLOVAKIEN".
M210926b
Ink stamped version: "PORZELLAN EXTRA" above the initials "CSLSA" and "TSCHECHOSLOVAKIEN".