From: Facebook Royal-Arsenal-History.com (RAH)

Taken in the late 18hundreds. 

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GeorgeE DEWSNAP. He was a superintendent at the Royal Ordinance Factory in Patricroft, Greater Manchester, England.

After the Shell factory in Woolwich was closed, George had the gates commisioned to be installed at Patricroft.

Following the closure of Patricroft, the gates were reinstalled back at the Woolwich Shell Foundry.

[His grandson is asking for any information on him]