HTTP/1.1 200 OK
Date: Thu, 25 Jul 2013 23:28:53 GMT
Content-Type: application/json
Content-Length: 151
Vary: Accept-Encoding
Connection: close

{"postage_result":{"service":"Air Mail","total_cost":186.55,"costs":{"cost":[{"cost":176.95,"item":"Air Mail"},{"cost":"9.60","item":"Extra Cover"}]}}}