Another source for crystal prisms

[Steve Scherrer]

http://www.crownawards.com/StoreFront/GLWG7.ALL.Corporate_Awards.Keystone_Wedge~23.prod

Can't vouch for the quality, but the size (6"x7") appears to be different than what I could get from Massillon plaque.

Just another option for those who might be interested.

[CAVX]

This Keystone Wedge Award
Sounds like the same shape as the prisms I used in the original MKI's which tappered towards their apex, making the alignment that little more difficult...

Mark