Coin, Token Or Washer? - Sweden 2 Ore? (Likely Tool Check Token)

It's not a coin, or anything to do with a coin. I'd guess the "Sweden 2 ore" connection comes about simply because Sweden issued some incuse-stamped 2 ore coins int he mid-1900s, though the design was completely different (they were much smaller, and not holed).

Exactly what it is I can't tell you. I'd class it as a "token", though what purpose it had is unknown. I can offer one suggestion: pieces such as this were often used as "tool checks" in mines and factories. The theory behind a tool check is this: the company maintains a key-board filled with tokens, one token for each of the communal tools, each token with a unique number that corresponds to one specific tool.There's a second board with each employee's name on it. When a worker borrows one of the communal tools to use on the job that day, they take the token for that tool off the first board and put it on the second board under their name. That way, if a tool goes missing or someone else needs that tool in a hurry, the company knows who used the tool last.

This is all in the pre-computer era, of course; these days, they'd use GPS trackers and spreadsheets to do the same job.