From Wayne Sayles vcoins.com store:
http://www.vcoins.com/ancient/sayles/store/dynamicIndex.asp


Alexandria, Egypt: Tranquillina / Homonoia

Billon tetradrachm, AD 238-244 (year 5 = AD 241/2). 14.28gm, 21mm. Draped bust of Tranquillina right / Homonoia standing left. VF with chocolate brown patina. Emmett 3449(5). Scarce. Ex: Newhall Collection. Purchased from Joel Malter (NFA) in 1974.

 Price  
  US$ 247.50   euro 194.39
 £ 133.15
 AUD$ 321.18
 CHF 303.40
 CAD$ 274.03
 
Rates for 5/5/2006