New CBM-II discoveries

Hi all,
Anyone interested in CBM-II stuff, we've had a couple interesting discoveries and I've posted them on my CBM-II webpage.Both of these items were known to have been in the commodore labs, but until now have been lost:
1) The Z80 co-processor board. Mentioned in sales literature but never seen. We have schematics that seem to indicate it was close to production. The interesting thing about this board is it was to work on both the P and B series. We don't know how close it was, and we don't have any firmware.
2) The Hires Color Grafik board. This is similar to the PET/CBM High-speed Graphik (HSG) board, using the same Thomson EF chip, but with RGB colour! The schematics shows it to be complete but lacking a part# so again we don't know how far along these were.
Very interesting stuff!http://www.6502.org/users/sjgray/computer/cbm2/index.html


Steve