The moon and sun figures are characteristic cabalistic markings used on Solingen blades from the first half of 18th century onward and may have even been used in variation earlier. The very large block letters are also found in a number of Solingen applications imitating Spanish markings, including 'Toledo' and 'Sahagun' for some of the most common.
The Solingen blade cutlers during the 17th century did expand into not only England (Shotley Bridge and Hounslow) but by the 18th century into many other European cities to set up small businesses. Another key location was Vira, near Stockholm, in the 17th century.
Enrique, thank you for confirming the motto is indeed in Spanish, as it should be
One must admit, it is a grand and perfectly worded motto.
Best regards,
Jim