Retailer Vintage Monogram Lens Corp Twilight Chevrolet Headlamp & Frame

Vintage Monogram Lens Corp Twilight Chevrolet Headlamp flat lens. Made in USA. 9 9/32x 8 3/4 marked on the glass. There are a couple of small chips retailer. One on the edge and one along the edge opening. The metal frame is corroded. Photos are a part of the condition. Has the letters I.G.C. on the edge of the glass. I believe this is from a 1920's vehicle.