Strictly speaking Kevin is correct - 15A was built at our Newport workshops but are often referred to as Baldwin tanks due to the design (not as Newport's or the like) or just Na's . The Victorian Railways (VR) took delivery of 1A & 2A (Vauclain Compound) assembled 3A & 4A from supplied parts and then built the subsequent locomotives as non-compound copies - much to Baldwin's displeasure...........