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 Post subject: Identifying markings on a Rubik's cube
PostPosted: Sun Jul 13, 2014 9:40 am 
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I have an original Rubik's cube which is more than 15 years old. Is there a way to identify the manufacturing date? I can see some identification marks on the inside of corner pieces. They are so miniscule that I do not have the equipment to capture a proper image. Is there an identification guide?
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 Post subject: Re: Identifying markings on a Rubik's cube
PostPosted: Tue Jul 15, 2014 5:27 pm 
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An "original" Rubik's cube would be more than 39 years old (which is more than 15 I agree). If your cube markings look like a clock face, then these are markings used by the manufacturer to identify the date they were made, which is quite a modern technique, and so it is not particularly old I think.

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 Post subject: Re: Identifying markings on a Rubik's cube
PostPosted: Tue Jul 15, 2014 6:18 pm 
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Gus wrote:
An "original" Rubik's cube would be more than 39 years old[...]
Actually, the first batch was produced in late 1977, so the oldest possible original Hungarian cube (Bűvös kocka) would be about 36½ years old.

Gus wrote:
[...]If your cube markings look like a clock face, then these are markings used by the manufacturer to identify the date they were made, which is quite a modern technique[...]
According to Arthur M. Merrill in his book "Plastics Technology, Volume 1", date code inserts have been in use since the 1940s.

Skarabajo.

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