Byzantine Gold Saint in Glass Pendant

10th-12th century AD. An aqua glass discoid pendant with folded suspension loop, gold foil bust of a saint(?) with robe and pectoral cross, processional cross to one side with central ring, capital '?' to the other. See Wamser, L. Die Welt von Byzanz - Europas Östliches Erbe, München, 2004 for discussion; Whitehouse, D. Roman Glass in the Corning Museum of Glass, vol.2, New York, 2001 for technique. 9.26 grams, 42mm (1 5/8"). From a private Belgian collection; previously part of a private collection formed in Germany in the 1990s. The letter '?' is properly Pamphylian Digamma, a variant of the standard archaic digamma '?' used for sounds represented in English by 'w' and 'v'. It was called epis?mon during the Byzantine era and was used as a numeral with the value of '6'. It was however easily confused with the Greek capital 'N' nu and was an orthographic variant.
Condition Report: Very fine condition. Extremely rare.