Boy that certainly looks like a Spencer carbine...
My former Father in Law was in his Army uniform home on leave and went into NYC. He bought a shotgun at Macy's. They didn't have bags or boxes for it, so he simply walked to the subway, took it to Grand Central, and caught the commuterline to White Plains.
He said the only person who even looked at him funny was the LIRR conductor who wanted to know if it was loaded or not.
That would have been sometime in the early 1950s.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.