Allander HF300 Hi Fi Stereo Headphones

I have a set of a Allander HF400L Headphones and would lie to know where i could get another set and how much. I have tried to google it but no luck any help out there
 
Mark51 
 
This is to Night Crawler i got the end letter wrong the number is H.F400 R  you have a bad mouth
 
Dear Night Crawler is see you have deleted your comment of me being a liar.
Please tell me why
 
OK Night Crawler lets look to the future all the best
 

I found these at a charity shop in the UK for £5 (about $3 USD). Amazing sound and very comfortable on the head. Each side has a large rotary audio volume control. Fantastic to get the right balance according to your personal taste. The cord is thick and coiled so it can stretch. But what really attracted me to these headphones are its looks. They are just gorgeous retro-looking things of beauty. I also like that the seem very rare and hard to find. You almost do not find any reference to them on Google. Allander is a trademark specifically for "House of Fraser" (http://www.houseoffraser.co.uk) in the UK. They are made in Japan (probably by Sony or some such and sold under a different name). I wish I knew more about them and the history of Allander. I also would like to know what they cost new at the time. Anyone having any information on these, please get in touch with me. Thanks for reading.