The Slums | Blueprints - Dying Light Game Guide | gamepressure.com
Is this every dev blueprint? (Both Main game and Following included) if not please tell me where and how to get nay that I might've missed (also sorry for poor quality) :
Dying Light Blueprint Locations in Old Town Guide
Steam Community :: Guide :: All Blueprint Locations | Dying Light + DLC
Dying Light: Locate EXPcalibur and its Blueprint | Shacknews
Dying Light Blueprints: Where to Find Them? - TWIFT
Dying Light 2: How to Upgrade Blueprints | Attack of the Fanboy