The following is the results of your search for treasury.
Treasury: (Matthew 27:6; Mark 12:41; John 8:20) It does not appear that there was a
separate building so called. The name was given to the thirteen
brazen chests, called "trumpets," from the form of the opening into
which the offerings of the temple worshippers were put. These stood
in the outer "court of the women." "Nine chests were for the
appointed money-tribute and for the sacrifice-tribute, i.e.,
money-gifts instead of the sacrifices; four chests for
freewill-offerings for wood, incense, temple decoration, and
burnt-offerings" (Lightfoot's Hor. Heb.).
