Two technical drawings rendered in sepia tones depict railroad crossing mechanisms from a 1936 patent, with the left figure showing the iconic crossbuck sign and bell apparatus, and the right showing the articulated signal arm in raised position. The composition balances engineering precision with historical weight, rendered in fine linework against an aged paper ground that evokes the original patent document's weathered authenticity. A glossy-finished set of four, made to order. A bold way to bring an independent artist's work into the room without committing to a large piece, whether on the dining table or the bar at your next party.