I touched the coin by hand and noticed Julia Mamaea on obverse, but the reverse seems very strange to me nor could I find a clue in my search. As for the ancient lamp, it was engraved by a weird deity having six wings. I saw the lamp recorded on an IPad, I think. Many other interesting items were also shown to me for trade or sale. I couldn't decide yet. Please take a look and post a comment if you like. Thank you..
Perhaps strange to your eye, but a common enough device on ancient coins. The three things on the coin's reverse are aquilae (the plural of aquila); Roman military standards topped by an eagle. The coin is a provincial issue. Looks like it is from Sidon in Phoenicia (you can see the S I D between the aquilae). There is a similar coin in CNG's archives although it is of Julia Maesa. Remember: if it looks like a kabob, it's an aquila or military standard
It's a provincial, struck by Sidon in Phoenicia, with some variation of the reverse legend: COL AVR PIA METROP SIDON
@TIF.. Thanks for your delicious reply. BTW.. the city of Sidon is not mentioned at all on the page of Julia Mamaea at Wildwinds. I think that even CNG's Archives might not have this reverse for Julia Mamaea. I also wonder if you could recognize the deity.
Wildwinds is far from complete when it comes to provincials, but I don't even see this Mamaea in acsearch so the coin is probably at least scarce or rare. On the oil lamp? If it is a Roman lamp, then a winged woman carrying a wreath and palm branch is Victory. If Greek (or a Roman province), her name is Nike.