. Bell telephone magazine . This exhibit was used during open house programs to demonstrateon a large dial the change from figure to letter for the third pull i8o Bell Telephone Magazine AUTUMN Every opportunity was grasped to con-vey information to groups of personswho would be particularly affected bythe number change. o Lasno. )»M QUESTE INFORMAZIONI VI AlUTANO AD USARE IL VOSTROTELEFONO A QUADRANTE

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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1922