Vintage Porcelain Fence Sign California Highway Road Sign Old 12 " X8 "

This is a nice original freeway road sign  department works this particular sign is with a white back which is the oldest of the three versions of this sign. 12" x 8" there's a spot missing of porcelain where it was hit on the opposite side with some type of projectle, perhaps a low caliber bullet, that failed to penetrate the sign itself. It has six rivets.