This is a SIM card holder with a label to keep them organized.
It takes a micro SIM and Mini-SIM.
The label area has indents to allow for a plain piece of paper with details of the SIM.
I printed with 0.15mm Layer Height in PLA using a stock prusa mini.
Tolerances are low so first, print a single one and check if it works OK. In this case I have had to add a single piece of tape to the anchor side of the micro SIM slot (Blue tape in the pictures).
The author hasn't provided the model origin yet.