There is an interesting article about these roubles by R.W. Julian in the current Journal of the Russian Numismatic Society.
L I N K to eBay auction

It appears to me as the regular bust die with ІМП and ВСЕРОС· (dot at end of legend). What do you think? Genuine or not?

Hi Bob,

For sure it was a genuine piece, just worn and arteficially toned at least on the averse.