I've just stumbled upon this website. And look, they have Tezro and PRISM on their design porfolio!!!
http://www.mp.com/
http://www.mp.com/
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SGI Tezro 2x700Mhz R16000, 8Gb
SGI Tezro 2x700Mhz R16000, 8Gb
SGI Tezro 2x700Mhz R16000, 8Gb
SGI Tezro 2x700Mhz R16000, 8Gb
pdp/VAX/AXP, DG AViiON, other Moto 88k, NeXT
Nat Semi 32k, Sun 68k/SPARC