Newly-released pictures show the crates containing 8,000 gold bars being received by an elite police unit before being loaded on to three armoured trucks and taken to secret National Bank vaults in what has been described as being one of the biggest private movements of gold between banks in the world.
The original receipt that came with the necklace shows that it was purchased in Breslau, now Wrocław, on May 4, 1810, just six days before Walewska gave birth to their lovechild.
Around 100 tonnes of Polish gold has been brought to the country, the National Bank of Poland (NBP) announced on Monday.
According to experts, the ornate, gold clasps were probably formed around the middle of the 5th Century, a period of confusion and chaos caused by the migration of barbarian tribes and the collapse of the Roman Empire.
Muscle-bound Konrad Bukowiecki does Poland proud after blasting his way into the record books with an incredible 21.5-metre shot put throw, beating previous holder Remigius Machura at the 2019 Summer Universiade championships in Naples, Italy.
Not only have gold reserves risen since 2018 but almost half of Poland's gold will be brought into the country, the National Bank governor said.