Which retail innovation was first introduced at railway stations in 1948, revolutionizing the concept of 'grab-and-go' shopping for travelers?

The intersection of retail and transportation has created fascinating innovations throughout history. One particular retail concept revolutionized how passengers experience train travel, setting new standards for convenience in transit. Test your knowledge about this transformative retail innovation that changed the way people shop while traveling by rail, influencing modern transportation retail concepts worldwide.

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• 7-Eleven convenience stores
• WHSmith travel bookstores
• Marks & Spencer's Simply Food
• Pronto Pups (self-service hot dog kiosks)

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