I dont collect by mintmark but still have gotten coinage from the reign of Constantine of 11 mints now. Some more if we count his sons coinage as...
Kingdom of Italy - Medal - Instituted 1894 - Italian African Campaign Medal [ATTACH]
1894: Austro-Hungarian Empire - 1 Heller - 1894 - Emperor Franz Joseph I. [ATTACH]
Austro-Hungarian Empire - 20 Heller - 1895 - Emperor Franz Joseph I. [ATTACH]
German Empire - Medal - 1895 - 80th birthday of Otto von Bismarck [ATTACH]
Russian Empire - 1 Rouble - 1896 - Tsar Nicolaus II. [ATTACH] French Republic - Medal - 1896 - Visit of the Russian Imperial couple to Paris [ATTACH]
German Empire - Medal - 1896 - Emperors Maneuver of 1896 [ATTACH]
German Empire - Medal - 1896 - 25th anniversary of the Proclamation of the German Empire in Versailles [ATTACH]
Kingdom of the Netherlands - 25 Cents - 1897 - Queen Wilhelmina [ATTACH]
German Empire - Medal - 1897 - Imperial Maneuver of 1897 [ATTACH]
Kingdom of Serbia - 1 Dinar - 1897 - King Alexandar I. [ATTACH]
German Empire - Medal - 1897 - 100th birthday of Emperor Wilhelm I. [ATTACH]
1897: Kingdom of Sweden - 2 Kronor - 1897 - 25th reign anniversary of King Oscar II. [ATTACH]
Currently I only "store" my labels digitally but I make them to save all informations I can get about the coin. Here the base version I make for...
Kingdom of Sweden - 1 Krona - 1898 - King Oscar II. [ATTACH]
Austria-Hungary - Medal - 1898 - 50th reign anniversary of Emperor Franz Joseph I. [ATTACH]
Netherlands - Medal - 1898 - Coronation of Queen Wilhelmina [ATTACH]
1898: German Empire - Medal - 1898 - Imperial Parade in Strasbourg [ATTACH]
Grand Duchy of Finland - 5 Penniä - 1899 - Tsar Nicholas II. [ATTACH]
French Republic - Medal - 1900 - Royal propaganda medal for the Orleanist throne pretender Philippe Duc d' Orleans [ATTACH]
Separate names with a comma.