[Translate to EN:]
"Glück auf!" This is a miner's lamp. It works with carbide and water. When both come together, flammable acetylene is created. The flame was reflected by a kind of mirror. So much for the technical details. The engraving recounts more information. This is a promotional gift from the company Friemann & Wolf in Zwickau. They specialized in miner's lamps. And because lignite was still being mined underground in the Tröbitz mining district, the Hansa mine probably was a significant buyer of such miner's lamps. Of course, there was a special occasion for this gift. In 1921, the briquette company in Tröbitz celebrated their 20th anniversary. The lamp was preserved diligently, also by the successor company. Finally, it made its way into the gem of our briquette factories - "Louise" in Domsdorf.