Telecom Éireann Dennison tractor 498 EZO, 1981 to 1993. Dennison Trailers of Rathcoole Co. Dublin built commercial vehicles from 1977 to 1981. They offered 4, 6 and 8 wheel chassis plus articulated tractors with a choice of Gardner and Rolls Royce engines. Motor Panels cabs as fitted to Foden trucks  were used initially until Finnish made Sisu cabs, as fitted to our vehicle, became the norm. Most vehicles were sold in Ireland and a smaller number were exported to the U.K.. Recession and export tax rates forced a reversion to solely trailer building, which continues to this day. The marque was highly regarded and was sold to many public bodies such as the E.S.B.. 498 EZO entered service with the Dept. of Post and Telegraphs which was split into its two constituent parts of "An Post" and "Telecom Éireann" in 1984. The fleet number denotes 81 as the year of purchase, P indicates the postal division and 628 the vehicle number. Withdrawn from service in 1993, it was presented to the Museum in 1997. It has a Rolls Royce 6 cylinder engine and a Fuller 9 speed gearbox. As Ireland's 3rd maker of heavy vehicles, preceded by the Great Northern Railway (buses), Timoney (fire and military vehicles) and followed by Bombardier (buses) Dennison is historically important. 498 EZO is on display in Howth.

Replacing horses in the collection and delivery of goods was eased with the development of what became known as the Scammell mechanical Horse in 1931/2. This 3 wheeled tractor , which could operate as an articulated unit and which could turn in its own length, could also couple with horse carts and was available in three and six ton versions. Scammels bought by the Great Southern Railways in 1939 passed to C.I.É. on its establishment in 1945. Considerable numbers were operating in Ireland by 1948, the shipping services operated by the B & I Line and British Railways requiring quite a few vehicles. Productivity decreed that there were three trailers to each tractor, one loading and unloading at either end of a route and one in transit between the two poiints. A new model, the Scarab, was introduced in 1948, early versions were petrol engined like their predecessors and later ones were diesel powered. The third and last generation, the Townsman, with a lightweight glass-fibre body, was introduced in 1964 and replaced C.I.É.'s last horses on city deliveries in 1968. Our vehicle, S137, was one of the last to be introduced in 1968 and worked until 1981. The demise of these useful vehicles was hastened by new regulations on braking capabilities with which they did not comply. On withdrawal, S137 was repainted by C.I.É. staff in Broadstone and was presented to the museum with trailer no. ST398. S137 is on display in Howth.