I can no longer read the number under the bottom bracket, but I believe it was 3xx 1980.
It is pictured at the top of Red Hill, near SimonsTown.
It was repainted by yourselves in early 2009 or 2010 in near original colours, & was once featured on your website.
It was sent to you by my buddy Mr Steve of Stibbard, Norfolk; who rebuilt it for me with a mix of parts,
but importantly with 44/34 chainrings which are coping with terrain here around Cape Town.
Barry - Cape Town. Happy to meet any other Mercian owners here in SA.