Wałbrzych – Stary Zdrój (Waldenburg – Altwasser) marks C. Tielsch and Company (C.T. Altwasser) printed mark, Waldenburg – Altwasser, Germany (Poland). 1900 – 1920 C. Tielsch and Company (C.T. Altwasser Silesia) printed mark, Waldenburg – Altwasser, Germany (Poland). 1900 – 1920 C. Tielsch and Company (C.T.) impressed mark, Waldenburg – Altwasser, Germany (Poland). 1870 – 1900 C. Tielsch and Company (C.T.) printed mark, Waldenburg – Altwasser, Germany (Poland). 1890 – 1914 C. Tielsch and Company (T.P.M.) cobalt mark, Waldenburg – Altwasser, Germany (Poland). 1860 – 1870. C. Tielsch and Company (TPM) cobalt mark, Waldenburg – Altwasser, Germany (Poland). 1850 – 1860. C. Tielsch and Company (C.T.) cobalt mark, Waldenburg – Altwasser, Germany (Poland). 1870 – 1900. C. Tielsch and Company (C.T.) mark, Waldenburg – Altwasser, Germany (Poland). 1870 – 1900.
