You can find the auction dates here.

You can find more information here.
When you order a package, it’s often delivered to a neighbour or nearby shop. If they are found by the police, they will contact you.
If you lost something in the S-Bahn, U-Bahn, tram or bus, you must go to the BVG- und S-Bahn-Fundbüro.
Lost something in Berlin?

Hundreds of thousands of lost items are found in Berlin each year. If you don’t know where your package is, read this guide.
**What to do if you lose your keys
Everything else goes to the Zentrales Fundbüro inside the Tempelhof airport. The tracking number or the delivery slip often have more information.
Items worth more than €15 are then sent to the central collection point in Wuppertal.3
Found items are kept at the train station for 7 days.
If they find your things, they will contact you directly.
If you lost your bank cards, cancel them as soon as possible. Many banks let you do this directly from their app.
If you lost your passport, report it to the police immediately, and to your local embassy.
Lost pets are kept at Tierheim Berlin.
Here’s what you have to get your things back.
If your objects were stolen, you must report the theft to the police. You don’t need to pay anything.1
If you lost something on a Flixbus bus, you must their lost item search
If you lost something on a Deutsche Bahn train, use their online lost property service.
Found objects arrive at the Fundbüro in around 5 days.1 Keys and personal documents are destroyed after 6 weeks.
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You can find more information here.If you find something in Germany, you have the right to ask for a reward.2 The reward depends on how much the item is worth.
There is a fee of €5 to €35 for getting your items back.4 You can find the fee list here.
If you lost something at the BER airport, go to their lost and found office in Terminal 1.
If your personal documents were lost or stolen, report it to the police immediately.5 The Berlin Police works with the Zentrales Fundbüro (see below).
For example, for a €1,200 item: €25 + 3% of €700 = €46
For objects found in the train or public transit, the rules are different:
This is how you prove that the keys are yours. It can take up to 2 days for items to be returned to the station.3 After 70 days, the found items are put on auction.