A butt plate is not included with this product.
If you're putting a snare drum together and want that vintage aesthetic, Gibraltar's Vintage Slingerland/Leedy-Style Snare Strainer is right up your alley. It features a classic 3-point mounting design, a simple right-sided vertical throw-off lever, and a tension adjustment knob.
The two upper mounting screws are spaced 1-11/16" across, while the third screw is centered and 2" down. Mounting screws and washers are included.