M111102a
Crowned "S" flanked by stylized curtains, all above "BAVARIA".
Mark family M111102 (version with "S") is said to have been a Winterling mark used on some of their Schaller brand items produced in Schwarzenbach while mark family M180602 (version with "K") is said to have been a used on items produced at the factory in Kirchenlamitz.
M111102a
Crowned "S" flanked by stylized curtains, all above "BAVARIA".