Obverse legend
Reverse legend

Rx F (the letters R, x and F under a tilde, two globules vertically aligned in the middle).

G R (the letters G and R under a tilde, a stick to the right of the letter R, two globules aligned vertically in the letter G, one globule under the letter R).

Coin sold by OGN numismatique, link to the sale and their website:

G F XF 40 AU 58 MS 63 MS 65
1 2.500 5.000 8.000 11.000 ? ?