Dornbos Sign., has been manufacturing, quality, r we flective, rusty-proof signs for over 50 years. Over the years we have produced traffic and custom signs for city, county, state, private and commercial agencies. We also carry a wide range of traffic control equipment. Such items as. traffic cones, Type II and III Barricades, sign brackets and sign post. DORNBOS SIGN & SAFETY also screen prints vehicle and truck decals. If you took the time to read this, good for you.