Watch List notes:

Crusader States. 11th-13th centuries PB token (16.72 mm, 2.64 g). Acre mint(?). Stylized cross / Blank. Cf. Metcalf pp. 306-7 with illus., and nos. 1229-30; cf. Rahmani & Spaer, INJ 3 (1965/6), 73. VF, Found in Acre. Rare. 

From the Kenneth Miller Collection of Ake-Ptolemaïs and Related Biblical Coins. 

There have been a few hoards of lead tokens found at Acre, thus the attribution here.