Since the opening of its mission in Namibia, the Zambian High Commission has been using the same visitors' book.

This is not because the mission does not receive visitors, but because the book is large enough and has been carefully preserved over the years.

The book is estimated to be more than 36 years old, depending on when it was crafted.

The first person to sign it was Zambia's second President, Frederick Chiluba, who signed the book on 4 December 1991.

Chiluba passed away in June 2011, but his 1991 message expressed hopes for Namibia's growth and prosperity.

Other notable entries include that of former jurist Frederick Chomba, a distinguished State Counsel who served in several countries, including Namibia, where he was appointed Acting Judge of the Supreme Court of Namibia.

He served in this capacity between 2008 and 2015.

In his 28 September 2011 message, Justice Chomba, who turned 90 in February, described Namibia as a land of brothers and sisters of Zambia.

The Zambian High Commission to Namibia was established shortly after Namibia gained independence in March 1990.

The diplomatic mission was opened in Windhoek to formalise the deep historical ties and solidarity between the two nations, which date back to the liberation struggle.

It was the second foreign mission to be opened after Angola.