Interesting, thanks for posting.
You may be aware that this company is still in business today. Here is a link to the company Wikipedia page: https://en.wikipedia.org/wiki/Maggi
It is not hard to find later 19th century Maggi liquid seasoning sauce bottles - they are in fact common thanks to the success of this company. I could not find another example of your jar. Hard to know how rare or valuable it is....possibly it would be of interest to the company itself. https://www.goodnes.com/maggi/about/
I feel like your jar is later 19th century in age. Might it have a ground top? Can you remove the metal lid to see this?