Ship Cargo Derrick Patent Blueprint Longshoreman Dock Worker T Shirt

Perfect for longshoremen and dock workers, this ship cargo derrick patent blueprint t-shirt features a detailed 1969 schematic of a ship's cargo handling derrick. The design highlights the ship mast, boom supports, topping lifts, load lines, and container outline with crisp white technical line art.

The bold nautical slab serif typography and precise blueprint style offer a vintage industrial feel that pays tribute to maritime loading equipment and dockside labor. It’s a distinctive design for those connected to shipping and cargo operations.

This shirt makes a meaningful gift for dock workers, shipyard employees, or maritime enthusiasts who appreciate the engineering behind cargo handling at sea.

• 100% ring-spun cotton at roughly 4.3 oz/yd² (heather colours blend in polyester for the marled finish).
• Classic unisex cut with a relaxed body, set-in sleeves, and side-seamed construction so the shirt keeps its shape wash after wash.
• Pre-shrunk & side-seamed for shape retention
• Direct-to-garment (DTG) printed with water-based inks
• Made in Canada & USA — printed on demand, ships in 1 business day
• Machine wash cold inside-out, tumble dry low, do not iron print
• Runs true to size. Size up for a relaxed fit.