Walthers Part # 933-2934, p. 226 Walthers 2021 HO Scale Reference. The Cornerstone Series Silver Springs Terminal is based on the streamlined structures that were built across the continent beginning in the late 30s. The clean lines of streamlined designs were applied to everything from light switch plates to vacuum cleaners; all evoked the look of speedy streamlined trains. With its curved windows and corrugated canopies, this transit terminal perfectly captures the look of the era. Bus stations similar to Silver Springs Terminal are still found in many cities, so this model will be a welcome addition to any transition- or diesel- era layout.