The TRIANG R50 Princess Cylinder Block is a vintage part made of plastic, designed to fit over the chassis of a MkII model railway. Manufactured in the United Kingdom in 1952, this analogue control system unit is compatible with OO gauge trains. The black cylinder block is a ready-to-go pre-built piece from the renowned Tri-ang brand, perfect for collectors and enthusiasts aged 17 years and up. Early 50s MkII chassis compatible cylinder block without retaining clips and valve gear slots.
