Viewers have been left perplexed after watching the six-hour journey of the hearse carrying the Queen's coffin.
On Thursday, the nation entered a period of mourning, as Buckingham Palace announced that Queen Elizabeth II had passed away at the age of 96 at her Balmoral estate in Scotland.
The monarch's death triggered a series of carefully structured operations that will take place up until her funeral on Monday, September 19.
On Sunday, six gamekeepers at the Balmoral estate placed the late queen's oak coffin into a hearse, as it started its six-hour journey through some of Her Majesty's most beloved locations in Scotland.
The hearse was pictured leaving the gates of Balmoral shortly after 10:00AM, with television cameras capturing the majority of its 175-mile journey.
The vehicle traveled through the villages of Royal Deeside, and then through the cities of Aberdeen, Dundee, and then Edinburgh, where came to a stop and the Queen's coffin was placed in the Palace of Holyroodhouse - the official residence of the monarchy in Scotland - shortly after 4:30PM.
However, eagle-eyed viewers spotted that the hearse didn't arrive as it had departed.
When the vehicle first exited the gates of Balmoral, a sticker for the company could be seen on the right-hand window - slightly obscuring the view of the Queen's coffin, which was draped with the Royal Standard for Scotland.
The sticker read 'William Purves', which The Sun reports is the firm entrusted to transport the Queen's coffin to Holyroodhouse.
In fact, the publication reports that the company's website actually crashed - seemingly due to the number of people attempting to visit their page after seeing the ad on the hearse.
But when the vehicle arrived at its destination, viewers noticed that the sticker was gone.
Some people online have speculated that, during the journey, the Queen's oak coffin was removed from the original hearse and placed in a new one. But from looking at images and videos of the day's events, the number plates are the same - meaning it was the same vehicle that made the 6-hour journey.
The Sun has reported that the hearse did stop "at least once" during the journey to allow the drivers the chance to rest. This was not televised.
Therefore, it is possible that the sticker was removed during one of these stops.
Some viewers even took to social media to discuss what exactly went on with the sticker:
On Monday (September 12), BBC News reports that King Charles III and the Queen Consort will fly from London to Edinburgh, where the new monarch will walk behind the late queen's coffin from the Palace of Holyroodhouse to St Giles' Cathedral. The route is known as Edinburgh's Royal Mile.
This is due to commence at around 2:25PM (BST).
A service will then be held to commemorate the life of the late Queen Elizabeth II.
From 4:00PM, members of the public will be given the opportunity to pay their respects and view the Queen's coffin lying in rest at St Giles' Cathedral. This will last for 24 hours, before the Queen's coffin is flown to London, where it will eventually be taken to the Palace of Westminster.
This will also mark the final time Queen Elizabeth II will be on Scotland soil.