This is a bay window to complement the Maxis “Classic Casement” window. It is re-meshed from the “Bay-outiful Window” (which is kind of similar but not really the same thing) and references all of its textures, including overrides like this one. It has slots on the sill, as well.
Available in nine colour variants for 360§.
High/Mid Poly: 433V/306F
Low Poly: 148V/100F
High/Mid Poly Sun Shadow: 160V/241F
Low Poly Sun Shadow: 42V/68F
blender, TSRW/Milkshape, s4pe.