Here's one resource for catalogs.
https://univegacatalogs.wordpress.com/
Also, don't forget to read T-mar's Asian Serial Number 'sticky' that will help you decode year..
Asian Serial Number Guide
With that Unicrown fork, I'd suspect that it is much newer than an '84! FYI, the '84 catalog is at the first link I gave, and it looks nothing like yours.. Here's my late '83-built '84 model:
.