This is a gorgeous bright yellow suit by Ben Zuckerman, which dates from the early 1960's. It is made of a nubby wool, trimmed in a matching yellow satin. The jacket is more 'casual' as it is collarless. This suit was probably worn in the spring and summer and is lots of fun!
Photos courtesy of The Window Lady.
https://www.etsy.com/uk/shop/thewindowlady?ref=l2-shopheader-name