Four pieces of mining memorabilia, mid-20th century
a paperweight made of marble, a hammer crossed with a mallet made of blackened metal, 8.5 x 13 cm (HxW), a round plaque made of pressed coal, relief decoration, hammer and mallet, Prussian eagle and the inscription: ZUR ERINNERUNG AN DIE ERSTE GRUBENFAHRT 1955 - DORTMUNDER BERGBAU AG, d. 13 cm, a brass mark for the washroom, Zeche HANSA, No. 3789, w. 4.5 cm, a historical hammer head from around 1800 or earlier, iron, engraved, l. 7.2 cm, from the estate of a Steiger, good age-appropriate condition