Czech-German handmade family tree

Family tree of the Adams and Hejtmanek families, in German, covering the period from the end of the 18th century to the beginning of the 20th century. Format of an unfolding accordion, decorative and floral introduction to the family tree on the title page, with an illustration by H. Dieler with a poem encouraging saving money from a young age on the flap, advertisement for the Vienna Savings Bank on the back. Family tree filled in by hand in several handwritings, ends with the date of Josef Adamek's birth in Vitkovice in 1901. Condition: good, brownish stain, one of the folds of the accordion is becoming fragile. Dimensions 29,5 x 61 cm unfolded