Bhayam Bhayam Serial In Gemini Tv Episodes on this page. Trombone Serial Number Lists Manufacturer (Parent Company) Serial Number Year of Manufacture Other information Amati-Denak Vincent Bach (Selmer) This list was created by and is reproduced here with his kind permission. Please take a few moments to read my and if you haven't done so already. I hope to add to and continually update this list - please do let me know if you spot any errors or omissions. Yuen Li Low's Trombone Serial Numbers Resource Trombone Serial Number Lists This page contains serial number lists (well, one list for now and hopefully more eventually) to help you estimate the approximate date of manufacture of your trombone.