1867 French Franc

It’s amazing what you find when looking through Dad’s old things…like a French Franc from 1800’s.

As near as I can tell it’s an 1867 French Franc…
1 franc Napoleon III, t̻te laur̩e Р1867

On the front: NAPOLEON III – EMPEREUR / K.

On the back: EMPIRE – FRANÇAIS// 1 – F/1867. with central design (crossed staffs surmounted by crown)

What I have learned so far:

All coins in the Napoleon III series were designed by Jean-Jacques Barre with the exception of the silver five francs pieces issued from 1853. Barre’s design was in fact used on the five francs for the first year of issue, but a new heraldic design (described below) engraved by Louis Charles Bouvet (1802-1887) was utilised from the following year.
Making full use of imperial symbolism, the lower denomination bronze pieces (one, two, five and ten centimes) bear on the reverse an imperial eagle standing on a sheath of lightning bolts with the legend EMPIRE FRANÃÇAIS followed by the denomination.
The twenty centimes, fifty centimes, one franc, two francs and 1852 issue five francs pieces were all struck in .900 silver and feature reverses bearing the denomination and date within a laurel wreath surrounded by the legend EMPIRE FRANÃÇAIS.
Five, ten and twenty francs pieces struck in .900 gold were added to the series in 1855, utilising the same wreath reverse as the lower denomination silver coins.