然而，警方警告說，他們 "不能說 "這些盜竊案之間是否有聯繫。
Hundreds of coins were taken from the museum in Manching, Bavaria, in the middle of the night in a nine-minute raid, police said.
The outages meant the alarm system was not triggered when a door was pried open, although it was able to record when the robbery happened.
Rupert Gebhard, Head of Collections at the State Archaeological Collection, mourned the loss saying, "It feels like losing an old friend."
In 2017, a hefty gold coin weighing 100kg was snatched from a Berlin museum. Two years later, thieves took 21 pieces of jewellery and other valuables in a dramatic diamond heist at Dresden's Green Vault museum that was caught on CCTV.
However, police warned that they "cannot say" whether there are connections between the thefts.
"It's clear that you don't just march into a museum and take its treasure," Markus Blume, Bavaria's Minister of science and arts, told local broadcaster BR.
"It is highly secure, and it is reasonable to assume that we are dealing with a case of organised crime."
They were unearthed during a 1999 archaeological dig near Manching - considered to be biggest discovery of Celtic gold in the 20th century. According to minister Mr Blume, the find gave people a glimpse into the daily lives of people living in Bavaria over 2000 years ago.