Looks like pix I've seen of the old downtown Buffalo Curtiss plant. Check the Niagara Frontier website. They had a street out beyond the parking lot they used as a runway to fly their newly hatched birds out to the airport for testing and USAAC acceptance. Busy Air Corps facility, as they were also taking delivery of spanking new Airacobras from the Bell plant at Niagara, just up the river.
Curtiss, Bell, Grumman, Republic, and Fairchild in New York; Pratt and Whitney, Ham Standard, and Chance Vought in Connecticut; Eastern Aero and Wright in New Jersey: there was a major chunk of the US aircraft industry in this little corner of the country.
Cheers
Wes