Japy Freres

I work on a lot of these French movements.  This is an example of a Japy Freres (Japy Brothers) movement stamped to show they were awarded a medal at the 1855 Paris Exhibition. This does not mean that the clock bearing the stamp is unique or will be the only one found with this stamping. It doesn't even mean that the clock was necessarily made in 1855. It just means that Japy Freres won an award in 1855, allowing them to display the award on their movements until the time another award might be won at a future exposition, such as the 1867 Paris Exhibition.  Vincent and Marti were the other companies that regularly won awards.
The accents that are usually available on a long key press seem to have disappeared.  At least my iPhone is back working again after Apple messed it up with their iOS 9.3 upgrade.  The 9.3.1 fix seems to be working.