Af941 was built in the Petone workshops in Wellington in 1906 the first in a group of 5 60' carvans. It had seating in two compartments for 72 passengers and a large guards compartment at one end and had a closed in balcony on the other end. 941 was  originally used between Wellington and Upper Hutt behind a small D class locomotive as a fore runner to the self propelled railcar. Of all the carriages in the SSR collection this is the most historically important to the Hutt Valley. Af941 was based in Wellington all its life.

A1448 was built in 1915 at the Newmarket Workshops in Auckland . It is a narrow body 47'6" high capacity surburban carriage with seating for 72 passengers and was based in Auckland for most of its working life. In 1970 it was converted for Way and Works service and Classified Ea3872. This conversion consisted of removing all the seats, blanking some of the windows and installing 2 large sliding doors. In this guise it was used by the Thermit Welding Gang in Wellington untill it was Purchased by SSR member Keith Magnussen in the late 1970's.

Aa1601 was built in 1925 at the Newmarket Workshops in Auckland originally as a 1st class car. 1601 is similar to Aa1235 being a 50' wide body car just with a few slight differences most notably the seats and bogies, 1601 being fitted with the later style of flip over scarret seating and BP 25140 bogies. Based in Auckland for its working life 1601 was stored for a couple of years before being purchased by SSR and moved to the Seaview site before it was leased by Steam Incorporated in Paekakariki from 1982 till 1997.