In 1920-1921 there was a series of 45 aluminum octagonal tokens made (20 pfennig) for riding the streetcar.
Each had a lovely scene of something in Nuremberg (I believe 5 depicted scenes in the town of Furth).
One person who cataloged these is Mr. O. P. Eklund in his 1948 book:
"German War Tokens" ISBN-10 : 1258506017 and/or ISBN-13 : 978-1258506018
I find the Eklund Reference less clumsy and confusing than the Menzel which has multiple editions and changes numbers.
BUT THIS REFERENCE IS NOT IN THE NUMISTA LIST OF REFERENCE CATALOGS.
Please vote to add, here:
https://en.numista.com/forum/topic105624.html#p872891