please help identify the stamp or hallmark

[shallowell]

The pictured item is 100+Kg and appears to have some gold content to it
I am having the samples assayed and will post the results asap
it is a very odd shape; seems to have been created for a specific use.
I am curious to know the refinery name that placed the TM or MT stamp on this item

[Mackaydon]

Shallowell,
Welcome to Treasure Net !!
The initials remind me of the Tucaman Mint marks. Tucaman was an area in Argentina and important (way back in the day) as a midpoint for shipments of gold and silver from the Viceroyalty of Peru to Buenos Aires. Also, there was a mint in the Crimea area of Russia (1787 and 1788) named Tavrida, and their mintmark was TM. However, my gut tells me the answer is a little less exotic (and more modern) than either of those two possibilities.
Don.....

[baywalker]

Looks A lot like A counter weight the file marks are for adjustment ?

Jonnie

[bradyboy]

As I recall ...
This image was posted a couple months ago
BradyBoy

[NOLA_Ken]

Yeah I remember seeing this before, as I remember it is some kind of bearing?