The Highland Railway P class was a group of five 4-4-0T steam locomotives built in 1891 and 1893 by Dübs and Company of Glasgow.
Although their cowcatchers and large headlights were removed before entering service, they retained a somewhat American appearance quite unlike other HR designs of the period, lacking the classic Allan framing and sweep of plating from the widest part of the smokebox to the cylinders.
Three further locomotives were delivered by Dübs in 1893, possibly comprising the balance of the Uruguay order.
Boiler pressure was 140 lbf/in2 (970 kPa) and weight in working order was 41 long tons 12 cwt (93,200 lb or 42.3 t).
They were used on branch line services, including those to Burghead, Fortrose, Portessie and Aberfeldy.