Thanks for your question.
We've tracked down and attached a spec sheet for the Krowne 16-201L Royal Series Deck Mount Faucet. For future reference you can find it in the "Learn More" tab on the product page, and here is a link directly to the document: http://www.etundra.com/ShowDocument.aspx?fileId=332387
On page two of the spec sheet you'll find a drawing detailing the tail/mounting shape, orientation, and dimensions.
Answered on 6/4/2013 by Andrew Call from Boulder, CO