Meaning Of "New York H.t." Postmark/Handstamp From 1914

Anyone have any insight on the oval shaped "New York H.T." postmark/handstamp on this cover postmarked May 15, 1914, in New York City? I've checked around a bit and can't figure out the meaning of H.T.

The stamp is US Scott #413, an 8.5 perforated vertically coil.

Howard & Morse was established in 1856 and manufactured wire office railing, window guards, iron fences, and all varieties of wire work for banking institutions and other businesses.

Thanks!

Hudson Terminal.

Thanks for the quick reply! The Hudson Terminal was quite a structure: https://en.wikipedia.org/wiki/Hudson_Terminal.

It was an important PO, it is not a scarce cancel.