Researching a Sulka "dinner" suit - weird vintage pajamas

[Benjamin E.]

A while back on eBay, I saw a set of pajamas made by Sulka and called a dinner suit by the seller. I think they were wool, had a button fly, a belt for the pants and a shawl collar shirt/jacket. Unfortunately, I can't recall too much else. I'd love to make something similar, but I need some source images. Does this sound familiar to anyone?

Thanks and hope you're all staying well!