Seems like a lot of these turning up lately

The 700-year-old sword, discovered in the Vrbas River, was found 36 feet underwater, stuck in a rock while archaeologists were excavating a nearby castle, The Sun reports. The Vrbas is a 150-mile long river in the heart of Bosnia, right near the city of Banja Luka.

Archaeologist and curator at the Museum of the Republika Srpska, Ivana Pandzic, said the sword was stuck in "a solid rock, so special care was needed when pulling it out" in comments obtained by The Sun.

In Denmark
Workers digging a sewer in the Danish city of Aalborg have unearthed a remarkably well-preserved sword that dates back to at least the 14th century.

Norway

The incredibly well-preserved Viking sword was found by a reindeer hunter on a remote mountain in Southern Norway.

The Glacier Archaeology Program at Oppland County Council was recently notified about the sword, which was found in late August in the high mountains of the Lesja area. “It is a common type of Viking sword - what makes it special is the context and the preservation: It was found at 1640 m [5381 feet] above sea level,” explained Lars Pilø, an archaeologist at Oppland County Council, in an email to Fox News. “To my knowledge, a Viking sword has never been found at such a high altitude before.”

This one truly is in incredible condition, all things considered.