Frankfurt a. M., 11. Mai 1914. pages 128, items 3567, tables 4. auction of coins.
K. Rudolph - an apothecary from Königsberg. Rudolph's collection was one of the largest collections of coins of Danzig, Torun, Elblag and Königsberg that ever existed. Original booklet covers. Very good condition. Hard to find. Noting: M. Gumowski "Bibliografia Numizmatyki Polskiej" item 436.