Expensive, but that is the going price for a nice pair these days.
http://www.ebay.com/itm/1914-Porcelain-California-License-Plates-Matching-Great- Unrestored-Condition-/231265232778?pt=LH_DefaultDomain_0&hash=item35d87b678a
The price doesn't surprise me, especially if they're clear.
Ed, Nice set!
I have been saving this set WITH the matching dash registration badge in the hopes one day I'll buy a 1914 T to put them on. It's almost impossible to find a set of these with the matching numbered dash plaque.