Who invented Dominosa ?

Dominosa was developed by O. S. Adler in 1874. It was patented by Richard Osa (pseudonym for O. S. Adler) in Germany in 1893 as German Reichs Patent No. 71539 and published in 1894 under the name of “Dominosa”, combining ‘Domino’ with Adler’s initials. It later appeared in 1912 in a domino puzzle book , co-authored by Fritz Jahn [4].