Alex .

This is replica.

It's hard to say, who is the manufacturer, because there are no maker's marks. I have two St. Anna miniatures that look similar to yours. First British, second French made.

Thank you JapanX! I was wondering, who is the manufacturer.

Authentic, most likely European made. Prices around: $200 & $300. Here is very similar one ...

Thank you.

Looks like they bumped up the quality 😀

It's fake. The silver hallmark is fake too.

Here is the description of these badges.

Thank you. Could be a copy. But in this case the badge from the museum is copy too, because it's totally identical.

This is Institute of Railway Engineers graduation badge.

I found the identical badge in Warsaw museum: https://cyfrowa.stacjamuzeum.pl/zasoby/obiekt/obiekty-w-technologii-360-st/obiekty-w-technologii-360-st/odznaka-na-rekaw-pociagu-pancernego-paderewski

Hi gents, What do you think about the authenticity of this badge? Thanks

Looks original. Here is another one.

It's made in USA. Not sure about the manufacturer.

Medal issued by the Aleutian and North American Diocese of the Russian Orthodox Church "In memory of the 25th anniversary of the first reunion of the Carpatho-Rusyns with the Russian Orthodox Church", 1916.