Ceria capacitor

["David Huffman" <huffman-at-fnal.gov> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hello Group.
I ran across a high voltage capacitor and would like to gain the wisdom of the
group. The cap is a 15 x 110 x 140 mm block. It is rated 10,000VDC 0.1uF and
has a custom part number of CERIA4642SP
I'm suspecting it is a ceramic made with cerium oxide. Does anyone know the
physical characteristics of CeO2? 
It looks to be a high frequency type since there are four terminals but labeled
1 & 2. They are straps ~7mm wide by 1mm thick coming out the shorter sides. 
I'm mostly curious since it's value is a bit large for Tesla use.
Dave Huffman
 
 
Here is my ASCII attempt.
        ______________________
 ______|                      |_________
[______| 1                  1 |_________] 
       |                      |
 ______|                      |_________ 
[ _____| 2                  2 |_________]
       |______________________|