Very rare and important original mounted photograph showing the " New Orleans Pick'ny Jass Band " probably taken in Baltimore as the address of 7 Atlantic Avenue may not correspond to any Brooklyn theater? So I believe it is for a location in a city in or near Baltimore, Maryland.
The theater posters also are promoting the Plantation singers in Uncle Tom's Cabin. This is a very important and historical early American mounted photographic boudoir-card image showing an integrated septet of jazz musicians in front of the theater.
Photograph by Bolter is somewhat faded. 1915 was determined reference by a Douglas Fairbanks poster on the far right promoting his first film.