A written or printed paper, as an advertisement or a declaration, posted, or to be posted, in a public place; a poster.

To post placards upon or within; as, to placard a wall, to placard the city.

These are large ticket posters for display by retailers (most often 6"x10") that show the ticket. Many show the ticket "unscratched" on one side and "scratched" on the other.

a sign posted in a public place as an advertisement; "a poster advertised the coming attractions"

a diamond shaped sign of specified dimensions placed on both sides of trailer, and rear that communicates the hazard of freight inside the trailer

A sign affixed to a rail car or truck, which indicates the hazardous designation of the product being transported in that vehicle.

Shipments requiring notice on trailer such as Flammable, Dangerous, Corrosive.

Warning symbol of a square-on-point configuration mounted on each side and each end of a vehicle or piece of mobile equipment which informs the public and emergency personnel of the hazardous nature of cargo, as specified in DOT regulations.