As I researched the people who once owned the Easter card posted on Passed Time, serendipity stepped in and this postcard sent to "Hanneh" Swan came up for sale. Swan, who received the postcard in June of 1907, was a resident of St. Georges, Delaware and one of the subjects in the Easter Day blog.
As shown by this postcard, "Uncle Rob" was either sharing his trip to the Armory in Syracuse, N.Y., or making arrangements to meet Swan there on "Fridy 8 PM."
The postcard, No. 2946, was distributed by the Hugh C. Leighton Company (1906-1909) of Portland Maine and printed in Frankfurt am Main in Germany.
I was already tickled at finding the card when I did, but its location added another amusing layer--I bought it from a dealer in Canada. Best, Pat