Denier, type 1, var 1 (Saint Mar?)

Obverse

Obverse legend

Reverse legend

Reverse

Pi Rx Fr (the letters P and i under a tilde, the letters F and r also under another tilde, the letters R and x mixed, the letters F and also mixed).

SCI _ MAR (inscribed in two lines separated by a line). 

Photo of a coin sold by NumisCorner, link to the sale and their website: https://fr.numiscorner.com/products/france-pepin-i-le-bref-denier-saint-martin-de-tours-vf30-35-argent?utm_source=cdma_product&utm_campaign=cdma_product&utm_medium=banner.

Like Numiscorner, I think this coin is close to that sold by OGN Numismatique, (see type 1) for the mints of: Saint Marcel de Chalon-sur-Saône (Côte-d’Or), Saint Maurice de Tours or Saint-Martin de Tours. It seems more likely to me that the workshop is that of Saint-Martin de Tours.