"Relatively few linear-style seals depict worship of deities. As part of the act of worship, in 678, 680, 681, the worshiper seems to be throwing incense into the flames of an altar before the deity... Seals 680-683 are smaller and show the nimbus of the deity by means of long hatches. They may be dated in the ninth or eight century B.C., since Berlin 658, a seal corresponding closely in subject and engraving with 681, was found in the uppermost layer in the excavation of some late Assyrian tombs at Ashur."--Porada, CANES, p. 81
Cylinder damaged.
Worshiper before deity in nimbus, between them flaming altar -- Crescent in sky.