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domino.nsg.htm -- 1013 bytes
According to Michael Mendelsohn (rec.games.computer.puzzles regular), he has a small booklet printed in 1924 in Germany, which claims that the game was invented in 1874 ff., patented 1893 (German Reichs-Patent-Nr 71539) bei Richard Osa (Pseudonym for O.S. Adler) and published by same in 1894 under the name of "Dominosa" (but reportedly sold badly since the game was yet unknown). The game was included in "Kurschners Jahrbuch" (almanac) in 1899, and in 1912 the first edition of my booklet "Sperrdomino und Dominosa" was published in Züllchow bei Stettin by "Verlag der Zullchower Anstalten", an educational institution.
Assuming O.S.Adler has priority, this type of puzzle should be called "Dominosa omnibus", being one manner of playing Dominosa. "Triplet Dominosa" uses a 36-piece Domino set (ranging from 0:0 to 7:7), and aims for triplets - three squares of equal value in a row.