A fire engine is a vehicle designed primarily for firefighting operations. In addition, many fire departments/fire services often employ their vehicles for various other uses including emergency medical services and rescue purposes. The terms "fire engine" and "fire truck" are often used interchangeably but in North America represent different types of vehicles. The primary purposes of a fire engine include transporting firefighters to an incident scene, providing water with which to fight a fire, and carrying other equipment needed by firefighters. A typical modern vehicle will carry tools for a wide range of firefighting and rescue tasks, with common equipment including ladders, a self-contained breathing apparatus, ventilating equipment, first aid kits, and hydraulic rescue tools. The following fire engines are depicted in the stamps: 1987 MERCEDES-BENZ 1222 AF 4x4, 1937 Ford Seagrave, 2006 SCANIA P270 4x2 WD, 2002 RENAULT MIDLINER M210 GBA 3/16 GICAR, 2004 Tatra Wildland Ultra XL 6x6.