An investigation has been launched by the Egyptian FA (EFA) after it found that several trophies have disappeared from its headquarters in Cairo, with an original African Cup of Nations reportedly among them.
Egypt received the prize after winning the 2010 edition of the tournament, so winning that particular incarnation of the trophy for a third time.
The trophy, whose style was first used in 2002 after Cameroon received the previous cup after winning that for a third time in 2000, was awarded after Egyptian triumphs in 2006, 2008 and 2010.
On Friday, the EFA said it had opened an investigation into the loss of various trophies.
"As the Egyptian FA is currently developing the main headquarters, including changing the entrance to a small museum of Egyptian football, the management was shocked by the disappearance of some old trophies from the storeroom," said the EFA in a statement.
A former EFA vice-president has claimed that the 2010 trophy is amongst the missing haul.
"The EFA was surprised to find that the AFCON trophy was lost and decided to open an investigation," Ahmed Shobier told a leading Egyptian football website. "Nobody knows where the trophy is."
After the EFA headquarters were attacked in 2013, various trophies - including the Nations Cup - were moved to a storeroom.
However, local officials only searched for them recently after the decision to renovate the EFA's entrance so that Egypt's multiple football cups could be displayed there.
In 2013, the EFA was stormed by angry fans during violence in Cairo and investigators are assessing whether that may have been when the trophies were taken.
"The EFA is now investigating the trophies' disappearance to determine if those old trophies were saved after the building was burned ... or if they were lost when the building was exposed during this incident," the EFA added.
Confederation of African Football (Caf) regulations state that a team that wins a particular incarnation of the Africa Cup of Nations trophy three times can win it.
The previous version of the Nations Cup trophy was awarded to Cameroon in 2000
Ghana was the first team to win the trophy three times, in 1978, while Cameroon then received the second version of the Nations Cup trophy after becoming the first country to win it on three occasions.
Under Caf rules, teams that win the Nations Cup receive a replica of the trophy on a permanent basis while they are allowed to keep the trophy for the two years in-between tournaments before handing it back.
The current trophy, whose style is still the same as the one won by Egypt, is in the hands of Algeria, who won the last Nations Cup title (in Cairo) last year.