Oil Hurricane Student Lamp Shade Glass White Peach Handpainted Fitter 7"

Oil Hurricane Student Lamp Shade Glass White Peach Handpainted Fitter 7" Measures 7 1/2" wide (at widest point) x 5" tall. 7" wide at Fitter. Top opening 1 3/4" wide Note Stain on top and also has sticky residue - likely from tape (see photos). Needs cleaning and I think that will come off, I was just not sure what to safely clean it with. Please see photos for condition. Has rough lower edge rim - likely from where it would normally sit in the fitter. Please see photos for details