1970's
note there is no fax number nor email address!
(This is the most classy card design with embossed logo in the middle you may not be able to see.)
(This is the most classy card design with embossed logo in the middle you may not be able to see.)
1980's
It now carries telex number and telefax (not a simple fax!) number!
1990's
It now says simply "fax" and my own email address as the company did not have official address yet then.