This is a c1930s vintage Onoto The Pen De La Rue & Co Ltd burgundy&black marbled fountain pen.It has a 14carat gold Onoto De La Rue London 3/ST nib which like the pen is in an excellent condition but would need a service to make it work and its measurements are 13.3cm long x 1.2cm in diameter.
On 10-Aug-16 at 16:33:18 BST, seller added the following information: