
Undated
S. Polchert 10-56
The typical-mark caption is dated 1956-1970; this does not establish a mark-use range.
Pottery & porcelain · a closer look
Documented on an object dated 2002; this does not establish a mark-use range.

Undated
The typical-mark caption is dated 1956-1970; this does not establish a mark-use range.


Undated
The typical-mark caption is dated 1982; this does not establish a mark-use range.

Undated
The typical-mark caption is dated 1979; this does not establish a mark-use range.


Undated
The typical-mark caption is dated 1946-1948; this does not establish a mark-use range.