I bought my 1878 in 2004, I know it was when Walt Johnson was importing them.
20 years ago, now.
It came with a set of lighter springs installed (and the OEM springs included in the box.
Sometime later Walt Johnson went to work at EMF, and they carried the same coach gun a few years.
Then Cimerron started offering them, then some supply and out of stock issues.
The prices went up, even used they were double my original purchase price.
There were several Turkish imports that cropped up under various import labels.
Adco was one about that time, and quickly disappeared.
Liberty & Liberty II's before that.
There was something about the Turk guns, parts if needed were non available and the guns themselves
would dry up.
Seemed every other issue of
Guns of The Old West, had review of a new Turkish SXS offering.
Huglu was another hammer double manufacture seen in those pages.
Then poof unobtanium, then another importer would ease into sight.
It did not instill confidence in me to purchase a Turkish SXS Gun.
Side note: I was amazed at the sheer number of Turkish manufacturers of Shotguns...
everything from, Semi autos to AR style, pumps, single shot and doubles.
Even Mossburg imports from Turkey...
Just for fun scroll page after page of Turkish Shotgun manufactures listed A-Z
https://ammoterra.com/shotgunsmade-in-turkey-manufacturer