Which innovative product design approach did the Imperial War Museum in London pioneer in 2014 that transformed how military museums sell commemorative items?

Military history museums face unique challenges in product design and retail merchandising. They must balance historical accuracy with commercial appeal while respecting the significance of the artifacts and events they represent. This trivia question explores how one famous military museum tackled a controversial product design decision that ultimately changed industry standards for commemorative merchandise.

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They introduced "Artifact Replicas" with embedded microchips that played recorded histories of the original items when scanned with the museum app
They launched the "Poppy Collection" where every product sold contributed directly to veterans' services, with transparent impact tracking
They created "Battlefield Experience Kits" that allowed customers to virtually experience historical battles through augmented reality
They developed the "Military Timeline" product series where each item represented a specific year in military history with exact historical specifications