200 mph speedometer

[geshaghi]

When I bought my 930, I received a box of extra parts from the PO, which included a 200mph VDO speedometer. It's date coded 8-86, so clearly not original to my car (a RoW 81). It doesn't have a 930 or 911 part number on it, so I'm not sure what this might be for and in doing a little bit of searching, the only 200mph units I saw were RUF branded. Any idea what this belongs to would be appreciated. Thanks

[Hams930T]

Could have been a NHS conversion.