Fig. 12 is Dietz & Nelson marking which has small letters and a period after the T – it is scarcer than the one in Fig. 13.

////Fig. 12 is Dietz & Nelson marking which has small letters and a period after the T – it is scarcer than the one in Fig. 13.
Fig. 12 is Dietz & Nelson marking which has small letters and a period after the T – it is scarcer than the one in Fig. 13. 2017-10-19T11:46:53+00:00

Fig. 12 is Dietz & Nelson marking which has small letters and a period after the T - it is scarcer than the one in Fig. 13.

Fig. 12 is Dietz & Nelson marking which has small letters and a period after the T – it is scarcer than the one in Fig. 13.