You can take a look at the board from which the chips were taken (and gracefully put back in) in the "Motherboard Pictures" page.
I didn't have time to compare them to the TANO roms, but I think the TANO ones are exactly the Dragon64 ones and the Dragon 200, there is one with two different bytes.
I'll try to compare them tomorrow!
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)