This is an iridescent glass bottle with a globular body, tubular neck and rolled rim.
A Roman iridescent pale green glass unguentarium, 1st-2nd century AD, with flat, everted rim, slender neck and conical body, the interior with a thick layer of silver iridescence, 4½in. (11.4cm.) high. * Condition: Intact, with no damage to the glass. The interior has a think layer of silver green iridescence and some light brown encrustation. Some further spots of light brown encrustation around the rim.
Date: 1st-2nd century AD
Size: 54mm x 113mm
Provenance: Purchased from a specialist London auction in 2020. Previously property of a South London collector; acquired before 1980.