Lost Shepard Mix Puppy: Light Brown, Black Face

This is a four month old Shepard mix puppy. He’s gone missing and I am desperate to find him. He weighs between 15-20 lbs (give or take a few). He’s got fuzzy hair and is a light brown with black face with a white stripe in the center. He has never been outside before. He tends to be curious but a little skittish. If he’s scared he will run. He’s wearing an orange nylon puppy collar.