This is an iridescent glass bottle which presents evidence of a chemical reaction from the soil in which it was buried. It has a cone-like body, tubular neck, and rolled rim. There appears to be slight corrosion inside the rim but otherwise, it's intact. This bottle mostly reflects blue colours with hints of green.
Date: 1st-2nd century AD
Size: 100 mm
Provenance: Purchased from a specialist London auction in 2020. Previously property of a South London collector; acquired before 1980.