How to frame arches

The sash is 55.5 x 33. The seller is capitolsalvagect and is located in Tolland, Connecticut. THESE LOOK GREAT REUSED RE-PURPOSED or simply hung on the wall as art work! Rare c1820 oval gable end window spider web design 55x33 architectural gem check out my other items. There is one piece of glass missing in the inside oval & 8 missing on the outside.