Tag/label holder with slit

Label holder for a label of **5cm × 2cm**, with a **3mm** frame holding the label in place. The slit is *1mm* high. The slit should be enough room to pry away the support with a tool without detaching the frame. The walls holding the frame are *0.8mm* thick at the point where they join. The screw/nail holes are *2mm* in diameter.

I added also a larger variant of the label holder, that can accommodate a label of **128mm × 85mm × 1.5mm**.