The % gold & silver ran in patterns in early electrum coins. The larger the denomination the lower the % gold and the higher the % silver. I believe full staters were 40% gold while the small denoms were up to 80% gold. This one visually appears even higher. It would be interesting to see what an XRF tells.
Here is one of my latest ancients, an auction win that turned out to be a major rarity! MARCUS AURELIUS as Caesar, AD 139-161AE Medallion (30.17mm, 10.27g, 12h) Struck AD 151-152. Rome mint Obverse: AVRELIVS CAE-SAR AVG PII FIL, bare-headed and draped bust of Marcus Aurelius right Reverse: TR POT VI COS II, nude figure standing facing, head left, sacrificing out of patera over altar, in his left hand a short staff; behind the altar stands a veiled woman (Pietas?) facing, head right, both arms raised in prayer References: Gnecchi II p.32, 101 corr.; Mittag 248; Cohen —; Strack 621 (BBol) Worn and rough surfaces, holed at 12h. An exceedingly rare bronze medallion struck for Marcus Aurelius as Caesar, previously known from just a single specimen in the Berlin Museum, acquired in 1860 and cited by Gnecchi, Strack, and Mittag. (Strack cited an additional example from Bologna, but Mittag was unable to confirm the existence of such a specimen.) This coin is a double die match to the Berlin coin, the only known specimen in private hands, and apparently the first to come to light in more than 160 years.
Today at the Numismata coin fair in Munich I bought a Roman Empire Silver Siliqua of Julian the Apostate (minted in Arelate (Arles) in either 360 or 361):
Since I am bad at taking pictures (and/or my smartphone is too old to take good pictures), the coin obviously looks much better in person than in my pictures, it (especially the reverse) has a beautiful bright patina.
Empire of the Romans Gold Histamenon Nomisma of Basil II Bulgaroktonos with Constantine VIII (minted in Constantinople sometime between 976 and 1025):
My latest. Roman Ae Antoninianus Florian (June to August 276AD) Siscia Mint. Obverse: Bust right, radiate, draped and cuirassed, IMP C M FLORIANVS P AVG, Reverse: Emperor standing right, clasping hands with Concordia. Mintmark T. RIC 57, 3.96 grammes, NVF with a flan flaw in the hair. Only 88 days reign and must have regretted declaring himself Emperor.
I just received a lot of 17 bronze coins from Forum Ancient Coins and the main prize in there for me was an AE28 of Otho so this is my first stab (no pun intended) at the Year of the Four Emperors! It's not in the best shape and you can barely make out the portrait but to have any coin at all of this rare emperor with my budget is good enough for me, I'm fortunate there's even a portrait to squint my eyes at. Otho Antioch mint 69AD AE28 14.5 g 27.7 mm RPC 4318
A few years back, I thought about cleaning this coin as it has darkened over the years I've owned it. But everyone on this forum begged me to leave it as is. I know how to follow consensus.
Carthaginian Silver 1/4 Shekel (minted in Carthage sometime between 220 and 205 BCE): This coin was minted when Hannibal was the Commander-in-Chief of the Carthaginian army.