Western Maryland No. 821 an H9a was an example from the H9a series.
The Western Maryland Railroad’s class H9a were a class of 2-8-0 Consolidation type steam locomotives built for the WM by Baldwin in 1921.
The first batch was delivered with tenders carrying 16 tons (14,515 kg) of coal in a long, low tank that was designed to keep the center of gravity as low as possible while accommodating a Duplex automatic stoker. It weighed 270,000 lb (122,470 kg). Beginning with 841, the redesigned tender carried the 20 1/2 tons shown in the specifications.
All were scrapped and none preserved.