1930 Ray-O-Print Self Developing outfit (very rare) original toy for kids

1930 Ray-O-Print Self Developing outfit (very rare) original toy for kids to develop there own cards. This was used to develop the famous cards we know now as "Self developing cards" by MP & CO almost a hundred years ago. Kids would collect these cards , but only a few players came in the set.. "Babe Ruth" and Gehrig" were the most desirable among the set...each pack held one cardinside as well as this metal Ray-O- Print outfit .. first thing was to place the card inside the metal outfit pictured above using a negative and an undeveloped card..and by using water or saliva children would rub either/liquid onto the card and place it in direct sunlight using this as a holder while the ultra violet light would then bring the card into focus after 30 mins or so on a nice sunny day.

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