Hi Rocks and welcome to the forums. If you post pics of your set we can help date them. Nice clear label shots (of all labels) is really helpful too.
Unfortunately many old fashion companies are not documented well online, or hard to find information on. Google showed me that it seems they started in 1901, had (or have) a factory in Liverpool. They seemed to specialise in knits but have broadened to outerwear. I found an advert from '73 and assorted clothing for sale including a reversible green cape from the '70s. I wonder if it's like yours?