Frame reproduction fake stained glass window of the ascension of Le Mans cathedral 1960s

Reproduction of vintage stained glass annotation on the back "le mans cathedral - fragment of the stained glass window of the ascension - mid-12th century - 2nd window on the lower south side - july 1966 " stained glass window I think in plastic - frame in fabric and wood 1960s dimensions: 22 X 29 cm good condition - with wall hanging system.