This grade ended up being released in 1925 to mark 100 years of pipeline making and carried on in generation through to the 1970s Azure Riband Fantastic Slam. Brought in 1933 together with the patented
This grade ended up being released in 1925 to mark 100 years of pipeline making and carried on in generation through to the 1970s Azure Riband Fantastic Slam. Brought in 1933 together with the patented