The description says this](http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=10183&item=7319016000&rd=1&ssPageName=WDVW%22%3Ethis) is a Pratten’s Perfected model. I may just be showing my newcomer status, but it doesn’t look like any other Pratten’s Perfected I’ve seen. The keywork looks much more Boehm-like.
There was a thread on this same flute a few days ago:
http://chiffboard.mati.ca/viewtopic.php?t=28491