MissScarlett: Liverpool Weekly Albion, January 9th 1875, p.7:<The following little skirmish took place recently at the Bradford Chess Club, between Mr. J. H. Blackburne and Mr. Whittaker.>
There follows the above game. The opponent is presumably the <Robert Whitaker>, reported one of the Blackburne's eight opponents in his blindfold display at the Bradford club on December 10-11th 1874. But as Blackburne also played many offhand games on the same visit, there's no suggestion this is the blindfold game.
So did Steinitz and Blackburne play the exact same game within months of the other?
Harding's book on Steinitz has this as game #433, marking it as <Austria or Germany (?), September? 1873>.
<<Bachmann> (game 347), <Sissa> 1874, pages 137-138. Bachmann said this miniature was played in the same simul at The Hague as game 399 against Van der Haak (which he had also wrongly dated) and the Linders, who included it in their book on Steinitz, pages 129-130, were also misled into saying this game was played in The Hague. <Sissa> published it under the heading "Buitenland," which means abroad, and calling the loser "X" (whereas <Bachmann> has "A").>