Early table ceramics
ca.1947 - ca.1956

Carstens table ceramics are rare to find and is is also extremely rare to find them with labels. The two pieces I have found have both three  digits form numbers. The milk jug has also the number 100 that is the size of the jug.

Unmarked
ca.1949 - ca.1956

Unmarked Carstens ceramics  can be found with the labels used ca.1949 - ca.1956. Some of these pieces have probably debossed form numbers that are covered by the glaze.

 

     XXX     XXX     XXX     XXX-XX
   X         XX                              
Incised, debossed and embossed marks
ca.1949 - ca.1956

Base marks with only form and size numbers are common on ceramics from ca. 1949 - ca. 1956.  The first generation of the "twin house" mark was sometimes also used together with the form and size numbers. 
 

WEST GERMANY
WEST-GERMANY
W-GERMANY
W.-GERMANY
Debossed, Embossed marks
ca.1955 - ca.1961

Base marks with the text WEST GERMANY,
WEST-GERMANY, W-GERMANY or W.-GERMANY was used by Carstens from the very beginning 1949 until the company ceased 1977. The base marks
WEST- GERMANY and WEST GERMANY are very rare.
The base mark W-GERMANY is very rare on ceramics with the labels used ca.1955 - ca.1956 but can be found on pieces with the labels used from the period before (1949-1954) and after (1957-1960). Most ceramics with the label used
ca.1955-ca.1956 have the base mark GERMANY. The reason for this is not understood.
From ca.1957 almost all ceramics are marked with W.-GERMANY. 
Most of the base marks are embossed but sometimes embossed base marks were used.

ca.1970 - ca.1975

ca.1970 - ca.1975

GERMANY
Embossed mark
ca. 1955- ca. 1961
 

The base mark GERMANY" can be found on ceramics from ca. 1955 - ca. 1960. This base mark has not ben found on pieces with the first label used 1949-1954. I have only seen one vase with this base mark and the label used ca. 1961-1969. It was on a vase 626 26 that was introduced 1960. The base mark GERMANY was probably therefore only used until the early 60s. This base mark is embossed on all pieces I have seen.