Easy Carrying AWR-0001 - OPEN STYLE AUTO-REWIND GARDEN HOSE REEL

Anyone know what this is for? It came with my house from 1948. Measures about 4.5” x 5”. Front part lifts up. The only markings is a handwritten “50” on the back.

VEVOR Retractable Hose Reel, 1/2 inch x 100 ft, Any Length Lock & Automatic Rewind Water Hose, Wall Mounted Garden Hose Reel w/ 180° Swivel Bracket and 8 Pattern Hose Nozzle, Blue

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Automatic Retractable Garden Hose Reel, Wall Mount Auto Rewind, with Spray Gun, Any Length Lock, 180 Degree Pivot, Garden Watering, Car Washing : : Patio, Lawn & Garden

Auto rewind Garden Hose Reels at

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Auto rewind Garden Hose Reels at