sixthave

They are lined up outside the Hippodrome in New York, where the production is "Happy Days", an extravaganza with swimmers and elephants. Alexander Woolcott' review: query.nytimes.com/mem/archive-free/pdf?res=9D01E4D6133DE5... It opened on August 23, 1919, was interrupted by the actors' strike until September 1, and continued until May 15, 1920. www.ibdb.com/broadway-production/happy-days-6673 The care has a 1919 license plate: en.wikipedia.org/wiki/Vehicle_registration_plates_of_New_... en.wikipedia.org/wiki/New_York_Hippodrome Location in Nov. 2016 Google Street View, Avenue of the Americas (6th Ave, btwn 43rd and 44th Sts. www.google.com/maps/place/1120+6th+Ave,+New+York,+NY+1003...

Based on the caption of this other Bain photo, it looks like these are ticket buyers lined up for one of Luisa Tetrazzini's shows:

Sixth Avenue btwn. W. 43rd and 44th Sts.,
see

www.wikidata.org/wiki/Q204583

Line outside Hippodrome Theater in New York to buy tickets to one of what turned out to be Luisa Tetrazzini's many farewell tours. She sang there on November 30, 1919 and again on May 14, 1920.
query.nytimes.com/gst/abstract.html?res=9A03E7D7153BEE32A...

The regular show at the Hippodrome at the time (8/23/1919 - 5/15/1920) was Happy Days -- www.ibdb.com/broadway-production/happy-days-6673

Check out Alexander Woolcott's review: query.nytimes.com/mem/archive-free/pdf?res=9D01E4D6133DE5...