Christopher WallisC. Cody Barteet
Frequently an image of the Crucified Christ above an alter references the Sacrament of Eucharist and the Transubstantiation. Location: East Bell Tower, 3rd Level, south wall above lancets.
http://ir.lib.uwo.ca/chriswallis_stainedglass_on_london_stpetercathedral/32
Stained Glass
Western Libraries
https://ir.lib.uwo.ca/context/chriswallis_stainedglass_on_london_stpetercathedral/article/1031/type/native/viewcontent