File:Letters Patent Issued by Queen Victoria, 1839 (14346087762).jpg - Wikimedia Commons

Category:Patents - Wikimedia Commons

Royal letters patent hi-res stock photography and images - Alamy

Victoria of the United Kingdom - Wikimedia Commons

Category:Patents - Wikimedia Commons

Category:Victoria of the United Kingdom - Wikimedia Commons

Victoria of the United Kingdom - Wikimedia Commons

Rare patent invention patent Brooman seal England Queen Victoria XIX

Category:William Hobson - Wikimedia Commons

Patent issued to Alexander Melville Clarke, Patent Agent, for an invention of improved machinery for casting the lead on board ship communicated to

Sold at Auction: QUEEN VICTORIA, LETTERS PATENT WITH GREAT SEAL OF

Letter Patent Granted By Queen Victoria W/ Royal Wax Seal, 1850

Victoria of the United Kingdom - Wikimedia Commons

Category:Patents - Wikimedia Commons

Victoria of the United Kingdom - Wikimedia Commons