Tacheles is a corruption of the Yiddish word Tachles and means plain speaking, expressing your opinion openly and bluntly. Wahrsagekarten means fortune telling cards. So these are fortune telling cards that don't mess around.
Published by Adolph Engel Verlag of Berlin around 1930, although some uncolored ones have been found that were dated to the turn of the 20th century.*
This version, from Malkiel Rouven Dietrich, has been renumbered to align more closely with Lenormand.
As with the other 'sigil cards' on our site, the symbols on these cards, while fascinating, don't appear to relate to any magical system.