Arches, Fort JeffersonDry Tortugas National Park; National Park ServiceBack: J-36; Within The Fort: View shows ponderous construction typical of Fort Jefferson. On The blue flagging of the floors lie the traverse arcs for each gun. To left, not visible, are embrasures; To right, case mate is arched open to parade from whence comes light; The huge piers to right contain communication arches and conduct drains; J625 DRTO 300675 1935; To cisterns lying beneath each case mate. Cistern openings at the back of each case mate are out of camera range.; [illegible] of Al Manucy; Key West 1935