M180602a
Crowned "K" flanked by stylized curtains, all above "BAVARIA".
Mark family M180602 (version with "K") is said to have been a Winterling mark used on some of their Schaller brand items produced in Kirchenlamitz while mark family M111102 (version with "S") is said to have been a used on items produced at the factory in Schwarzenbach.
M180602a
Crowned "K" flanked by stylized curtains, all above "BAVARIA".