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Re: Restoration of a Herring, Hall & Marvin Safe

Posted by Doug MacQueen CPS CMS on February 10, 2009 at 12:14:52:

In Reply to: Re: Restoration of a Herring, Hall & Marvin Safe
posted by
Brooklyn on February 10, 2009 at 07:21:32:

No problem! As a mechanical engineer, it may also be of interest that the current standard mechanical lock design in the industry, the Sargent & Greenleaf model 6730 is basically the same design as the one patented by James Sargent & Henry Covert in 1866. Very little in the way of design changes or improvements in mechanical locks have been made in the last 100's Doug And yes, it is great to dial a safe open.



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