According to rafweb.org:
[quote]
No 328 (GC/I/7 'Provence') Squadron
Formed on 1 December 1943 by renumbering a French unit based in North Africa and together with No 326 and 327 Squadrons, it formed a Free French fighter Wing on the island of Corsica, where it moved to join the other two.
The Wing covered the Allied landing in Southern France in August 1944 and in September moved to Alsace-Lorraine, where they flew offensive patrols supporting the First French Army on its advance into Germany.
Initially equipped with Spitfire VB/Cs, and IXs, by April 1944 the Mk Vs had gone and between July and September 1944 it also used the Mk VIII, after which it reverted to just the Mk IX, which it continued to operate until November 1945, when it ceased to be a RAF unit.
No Badge Authorised
[quote]
And its markings were:
http://www.rafweb.org/SqnMark310-330.htm
But that's just a general view.