Builder's Blueprints Description Never bring a gun to a blueprint fight. Price Unique 1 Hat Uncraftable 9.66 Refined Strange 1.9 - 2.05 Keys Classes Engineer Tags Cosmetic Misc Blueprints Items Chance 2% Unique Vintage Strange Genuine Collector's Haunted Unusual Unique Vintage Strange Genuine Collector's Haunted Unusual $7.49