Phoenix(MEGI) is now part of Continental and were(might still be ) OEM for decades. Can be found in other brands' packaging. Now sufe of production plants,the ones bought from the dealer years ago were Germany.
https://www.meinert-hamburg.de/en/Vibration_technology/MEGI.php
P.S. Concerning left/right - the ones for Fintails for example are visually identical(and go with different part numbers). There must be a difference in the characteristics. Some other catalogs(aftermarket) list only one number as "left and right"(probably the more robust one).
https://www.meinert-hamburg.de/en/Vibration_technology/MEGI/MEGI-Bearings.php

Ok you need to double check but it seems the numbers are A1152410713 for the right and A6152230112 for the left one .