Willig Freight Lines

Willig Freight Lines
San Francisco, CA
MC-048632 DoT 68710
Ceased operations in 1995

Facebook - Willig Freight Lines
Youtube - 𝗪𝗜𝗟𝗟𝗜𝗚 ғʀᴇɪɢʜᴛ ʟɪɴᴇs Trucks
Youtube - Willig Terminal Action

Profiled in Mike Terebecki's The Trucking Pioneers Book VII (click image to see Book index)

A Coloring Book of Fallen Flags
c01b"

Patches of it that are in my project - Facebook Trucking Industry Insignia Patches

Other known patches

If you want your own trucking company memoribilia:
Items available on eBay
Note that patches sold by "freedomfifty2k" and "bob82ndabn325inf"are likely promo/replica patches, not patches actually used by the company represented.