This is an aftermarket 3 1/4" (3.25") . It is profiled exactly like an original "A" Graflex lensboard.The most common use is on the 3 1/4"x4 1/4" D and 3 1/4"x 4 1/4"Super D Reflex Graflexes.And it fits teh 3 1/4"x 4 1/4" R.B. AUTO Graflex. Material is solid core furniture grade ply. Painted flat black, but also available without a finish. This lensboard will not fit Crown and Speed Graphics that utilize an aluminum lensboard. It will not fit the Super or Super Speed Graphic cameras. Photo #1 is front side #2 is back side (use zoom to see recess at back)shipping anywhere in USA.