Yes it is Kingdom of Jerusalem . Struck during the siege of Jerusalem by Sibylla, Queen of Jerusalem and Balian of Ibelin in 1187 . Bi Denier . + TVRRIS DAVIT (legend retrograde), Tower of David + SЄPVLChRVM DOMINI, view of the Church of the Holy Sepulcher Slocum 288; cf. C.J. Sabine, “Numismatic iconography of the Tower of David and the Holy Sepulchre,” NC 1979, pl. 17, 3; N. du Quesne Bird, “Two deniers from Jerusalem, Jordan,” NumCirc LXXIII.5 (May 1965), p. 109; Metcalf, Crusades, p. 77; CCS 51. Very Rare . Thirteen known example . The Ernoul chronicle refers to Balian of Ibelin and the patriarch Heraclius of Jerusalem stripped the silver and gold edicule from the Church of the Holy Sepulcher for striking coins to pay those defending the city at it's last stand .
Awesome thread. Crusader coins are on my collection expansion list (along with Medieval more generally)