Three previous articles in Word Ways [1,2,3] have discussed ways of mapping distinct integers onto letters so as to produce "perfect" or self-descriptive number-names. So far English, French, and Spanish have been examined. Glancing next at German, the same pencil and paper plus computer program approach already outlined in  can be used to find mappings such as:
"Rare Maps for Collectors,"
Word Ways: Vol. 26
, Article 4.
Available at: https://digitalcommons.butler.edu/wordways/vol26/iss4/4