Hang on to them, could be worth a lot - 1880s Levis auctioned off for $87k:
https://edition.cnn.com/style/article/19th-century-levis-jeans-intl-scli/index.html
They weren't banned in East Germany and were very popular despite costing an arm and a leg:
https://sourcingjournal.com/denim/denim-brands/jeans-symbol-youth-empowerment-berlin-wall-germany-cold-war-levis-174427/