in a clearout of a workshop, we have some ford rs side skirts, these are genuine with the rs stamps on the side.

the part numbers are 5050008 for the LEFT SIDE AND 09 for the RIGHT.

is anyone got an idea what these are?

 

is it escort mk4 ones? think i know the ones you mean, i saw a set on an xr3i and the old boy driving reckoned he had them fitted at factory, he'd had it since new.
iirc similar to rst skirts but the ends came up

 

yep that sounds right. we have a set brand new still in the box. along with kevlar and fiberglass escort cossie panels and wrc escort cossie dash parts.