To be specific, it is a later production Raysport Super Corsa. Earlier production had 1010 dropouts. It would originally have had chrome lugs. IIRC, they are chrome plated but the chain stay was not exposed chrome.
Example of a NOS frame below.
P2221599 by
L Travers, on Flickr
P2221601 by
L Travers, on Flickr
P2221597 by
L Travers, on Flickr