You are looking at a new old stock
Vintage Colibri Yellow Gold Plated ballpoint pen & Rollerball pen set.Vintage from the 1970s. "Colibri Writing Instruments With Style"
The set comes in the original box and papers.
That was a store display for a longtime, may show very light hairline scratches.
The pens don’t come with refills or if they have refills you may need to change them soon.
Please check all photos as they are part of the description. What you see is what you will get.
Thank you for looking :)