Middle Tower in the Stoa of Attalos, Piers 10-11. From a drawing made at the beginning of the 19th century for Edward Dodwell and published in his "Classical and Topographical Tour through Greece", 1819, vol. I, p. 370. Labelled as what was thought to be the "Gymnasium of Ptolemy". Cf. Agora XXIV, pl. 5, Tower W6.
