2 West Germany Oberfranken beer mugs

Set of two grey enamelled ceramic beer mugs or bocks with a colour print: oberfranken (a bavarian constituency) and its crest, probably "memory mugs". There is also a hollow marking indicating 0.5l on the side and a hollow stamp below "made in west germany", so they can be dated before 1989. They are in perfect condition (state of origin), no lack, no cracks. One weighs 630g and the second weighs 590g. They are 13 cm high, about 14 cm wide (with the handle), 8 cm in diameter at the "neck" and 10 cm in diameter at the bottom.