two different types provided.
Safety valve casing:
with or without top-feed.
many rebuilt to 'De Glehn' type without swing-hangers and fitted with
strengthening patches - built with beaded bogie splashers.
built with fluted rods - many subsequently replaced with plain rods.
the locomotives acquired frame strengthening plates surprisingly quickly,
probably during their first major shopping around 1904-1906. They were first
fitted with separate plates for each axle and later larger, one piece plates
were fitted to some of the class.
originally quite short and later front and back rings riveted.
early flush rivets - later snap head rivets.
originally below footplate for leading coupled wheels only - at around the time
of the frame strengthening larger sandboxes fitted above footplate for all
early canvas covered wood - later steel - two types.
early with beading - later beading removed and rivets visible
Leading coupled wheel splasher:
Built with a beaded splasher, below the footplate, on the leading coupled axle
which were gradually removed up to WW1.
Cab spectacle windows:
plated over during the late 1920s.
pipe: originally tall -
later a shorter pattern introduced.