Looking at the seller's photos on eBay, the cell at first appears to be different than the one used in the film. However, I believe this is because the production dressed up the cell with a false metal frame on front, maybe to give it a more dramatic look or because it would photograph better.* If you look at the sides of the cell, the interior, and especially the stocks, it is clearly the same cell. It's also pretty well documented that the cell used in the film was the Abb Dickson cell, which some media even claimed to be an original Houdini cell (it isn't).
|The Abb Dickson cell today (left) and as it appeared with the metal frame|
dressing in The Great Houdinis (1976).
It will be exciting to see what happens with this great piece of magic and movie memorabilia. Check out the auction (#260841901287) on eBay.
Click here for a detailed look back at the Making of The Great Houdinis.
*UPDATE: Gay Blackstone, who served as Sally Struthers' stunt double and magic coach on the film, has confirmed that a false metal front was indeed added to the cell to balance the lighting during filming.