VINTAGE 1960S BRASS ROTARY TELEPHONE MODEL DO-8 MADE IN JAPAN VICTORIAN FRENCH STYLE HEAVY 3.6KG

VINTAGE 1960S BRASS TELEPHONE MADE IN JAPAN. HEAVY 3.6KG MADE OF BEAUTIFULLY RELIEF DECORATED BRASS. IT IS A MODEL DO-8 ROTARY TELEPHONE WITH A CLASSIC VICTORIAN FRENCH STYLE.
 
MARKINGS: CONFIRMED ONLINE TO BE A MODEL DO-8 BRASS TELEPHONE FROM JAPAN. The DO-8 is a model of a rotary phone, a type of telephone that was commonly used from the 1920s to the 1960s.
 
Size: 20CM WIDE 20CM HIGH 19CM DEEP
 
CONDITION: NOT TESTED. ROTARY DIAL TURNS BUT SLUGGISHLY. EARPIECE FUNNEL MISSING.
 
ROTARY PHONES: Rotary dial phones are the earliest user controlled phone to be mass produced. Prior to the rotary phone a user would pick up the phone, wait for the operator to answer and then tell the operator who they wanted to be connected with. With the rotary dial, the user was able to dial freely, allowing for quicker and more convenient connection to the people they wanted to speak with.
The first patents for rotary phones was filed in 1879 but it was only in 1919 that the American Bell Telephone Company began national service for user controlled rotary dial phones.
Until the 1970's, when push button tone dial was introduced, rotary phones were the only viable option for user controlled phones. By the 1980's most rotary phones were phased out.
 
HOW IT WORKED: It was called a rotary phone, because it had a rotating disk of ten holes, labelled 1, 2, 9, 0. The user inserted his or her finger into one of the holes and cranked the rotating disk clockwise up to a barrier that stopped the movement of the finger. Then the user released the disk, and it rotated counter-clockwise back to its starting position, due to a spring-loaded force. That action was called dialing. The speed of rotation, caused by a precise spring force, caused the electricity (typically 48 volts) to be interrupted a number of well-spaced (typically for 1/10 second) times, corresponding to the specific digit that had been selected by the user. Thus, for example, it the user had chosen the digit 8 for inserting his finger in that-number hole and rotated the disk, the current in the telephone line coming into the home would have been interrupted eight times, with eight rapid pulses (or interruptions) being sent along the phone line to the nearest telephone company central office. A mechanism in that office would interpret those eight pulses to made that the user had dialled the digit 8.
Each hole in the disk was labelled, in addition to a digit, with a triad of letters, such as ABC for the digit 2, DEF for 3, and so on. (The letters Q and Z were not used., Also, the digits 1 and 0 did not have corresponding letters; those digits were reserved for related actions, such as accessing the long-distance network or a human operator.) Thus typical telephone numbers could be a mixture of digits and letters, such as my own childhood home phone number, which was 329-J. Thus, using the 329-J example from earlier, the Switch (which consisted of hundreds or thousands of relays) to have its first relay step up three times, the second relay twice, and so on; the letter J would cause a relay to step up five times. Through this arcane process, a calling party could be connected to a called party (although back then many wrong numbers were reached, due to various electrical or mechanical glitches.
 
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