thanks!
The pictures are appreciated,I'm glad to see you as a honest person, such a quality is not as common in people as in yesteryear. The Bison is a cleaner many lust for, one of over-complicated mystery. It was such an excellent cleaner, but one plagued with failure, especially in the earlier green models.the green models were even known to break-down during an in-home demonstration!
Bison was a company created by a former Kirby worker, would believed he could create a better vacuum.in some ways he did, as I said above, these cleaners were excellent at deep-down cleaners.
The Bison was changed just enough so that no Kirby patents were violated, such as the "empty-o-matic" on the bottom of the bag opens from the side.