H V Mansfeld-Bûllner 1974 revised edition by J C Holm of the 1887 original. Copenhagen. PB 7 pages including a one page english summary + 78 plates mostly of excellent line drawings + 16 pages of index.
This is the standard reference work on the civil war black money pennings of Erik Ploughpenning to Valdemar IV. This revised edition has had those coins, subsequently identified as mis-struck specimens removed.
Spine sunned, otherwise a good clean copy.