The once-controversial Roman Warren Cup will be highlighted at the British Museum this month in recognition of LGBT+ month. It has been dated to AD 10 and depicts a male couple engaging in sex. A reclining bearded man apparently is engaging with a beardless youth who lowers himself on him.
It was first purchased by American collector Edward Warren in 1911 for £2000 pounds along with coins of Claudius. It was thought to buried during the Jewish Revolt. It later sold to the British Museum in 1999 for £1.8million.
An in-depth description of the Warren Cup:
Background history of the Warren Cup:
https://en.m.wikipedia.org/wiki/Warren_Cup