>One was a production genga or at least it said it
>was, but I highly doubt it was as I never saw that
>picture before and I believe it was signed.

Why would you DOUBT in was a genga ?

The item you are reffering too was an original
watercolour drawing (painting on hard card board)
However it was used as the Genga for the an omake
image on the DVD.

Thank you 

Stephen Saito