Notes: 29)

It was also found in the background of another
portrait [90]. Both are in the Benaki Museum,
Athens: see A. Alexopoulou-Agoranou et al.,
'Physico-Chemical Study', p. 294. An extremely
interesting discovery of a laboratory of Hellenistic
times in which Egyptian blue was manufactured
was made in 1984 in the town of Kos on the
Aegean island of the same name: see C. Kantzia
and K. Kouzeli, 'Workshop for the Manufacture 
of Pigments in the Ancient Agora of Kos',
Archaeologika Analekta from Athens, 20,1987,
pp.211-55.