Executive was a company based in West Germany. Some models were made in Germany, others in Austria and Portugal.
Here is an old eBay link to a 3-speed version of your bike: http://www.ebay.com/itm/Vintage-3-Speed-Executive-Bicycle-/111175542377?nma=true&si=adXRuu4NyZFakASqQaGLOxwCATw%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557
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