Mid-century modern, Austrian Glass wall lights manufactured at the end of the 1960s, beginning 1970s. The glass has been individually formed by Slumping in the oven to create unique bi-colored green and clear glass elements. The glass was produced by Stölze, Austria in collaboration with J. T. Kalmar. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution, European Plug (up to 250V).The wiring of this item may be original and might need replacement, if not specified otherwise.