Nikaia in Bithynia, 198-210 AD., Caracalla, Hemissarion, unlisted.

Nikaia in Bithynia, Caracalla, 198-210 AD.,
Æ Hemissarion (15-16 mm / 1,68 g),
Obv.: ANT-Ω-N-I - NOC AYΓO , laureate and radiate head of Caracalla right.
Rev.: NIKA-IEΩN , brabeion = Greek prize basket, meant to hold prize objects for the victors (also called "prize crown" "prize urn") with one palm branch.
Waddington, Rec. Gén 1/3, - ; Weiser - ; BMC - ; same dies: http://www.wildwinds.com/coins/ric/caracalla/_nicaea_AE15_urn.jpg .

For the discussion of the reverse type see:
http://www.forumancientcoins.com/board/index.php?topic=28925.msg188295#msg188295
http://homepage.univie.ac.at/elisabeth.trinkl/forum/forum0300/14specht.htm