The complete set in detail

ZFW42
Sc No. 8NB5
1949 - Württemberg : Ski championschip at Isny, watermark 'multiple crosses and circles' - 10 Pfg. + 4 Pfg. ; blue-green

ZFW43
Sc No. 8NB6
1949 - Württemberg : Ski championschip at Isny, watermark 'multiple crosses and circles' - 20 Pfg. + 6 Pfg. ; carmine-brown