The tympanum drum is found in many depictions from ancient Rome: Ancient Rome Mother Goddess
Under kapittel Oriental Cults in the West, page 158. Pictures from Roman Antiquity are from The Cambridge ancient history (1923) by Byry et al. 1923.
More culture depictions from the Roman Antiquity in Italy
Iron Age in Norway
Viking Ship Museum in Oslo, Norway. The chart from the Oseberg ship (about 820 CE) and many of the ancient symbols seen in this museum are resembling those of Greek Roman Antiquity. Norway Iron Age about 500 BCE to 1030 CE.
Roman Galli men carry a throne of Cybele - the mother Goddess
Altar Roman Galli men carry a throne of Cybele, with two statues of Gallus on pedestal. Exhibited at Fitzwilliam Museum, Cambridge
Three ancient Gods of the early Roman Empire
Roman Antiquity, Wind Gods from Germany
My Guess is that it is the wind god Aiolos. At page 56 in the referred book it is guessed that these are wind gods.