This guide truss on US 59 at the I-35 interchange notes US 59 follows I-35 south, but relagates US 50 to the sidelines.
"New Old School?" Apparently, when the contractor installed this new assembly on I-35/US 50 where US 59 now joins, they used what the road enthusiast community refers to as the "1958 specs," which carry smaller digits on the I-35 shield.