This is a DeSantis Gunhide Belt Holster known as the 19, model 019TA8JZ0.
This unique holster has been reduced to the barest of essentials yet offers a secure grip on the handgun thanks to exact molding and adjustable tension device. The Mini Scabbard(R) will accommodate belts up to 1 3/4" wide. Available in black or tan unlined leather. Note: Some models without adjustable tension device.
Features:
Simple leather design
Most models feature a tension screw
Most models have belt slots to accommodate 1 3/4 belts;If a user places a belt loop in the middle of the opening on the back, the holster will not move out of place