Roman, 1st century B.C. – 1st century A.D
Measures 3.7 x 3.6cm
An unguentarium, also referred to as Balsamarium, Lacrimarium or tears vessel, is a small ceramic or glass bottle found frequently by archaeologists at Hellenistic and Roman sites, especially in cemeteries.
See the last image for a remarkably similar example sold by Christie’s, New York, Antiquities, 18th April 2018, Lot 46 for $18,750.