@bagman Simply put no. But they were in production from 1954/55 to 1960. The 111 markings relate to the beard type, Blue Tip was 1 for a "Light Beard", Unpainted tip ones were 11 (or O or S just to confuse you ....
) for "Normal Beards" and Red Tip was were 111 for "Heavy Beards" The patent number covers a multitude of razors. So yours is between 58 and 62 years old.......
British Gillettes have no date code until near the end of production of DE razors and then they followed the US system.