Rallye temp gauge identification and options

[rstockbridge]

Can someone identify what temp is at the halfway mark on the 1968-1970 rallye temp gauge? I’m guessing 200, but I would like some input from t someone that knows.

Also, is there an aftermarket gauge that is a good fit with better temp identification?

 

[rstockbridge]

Bump

 

[70Fish]

They also had 2 different faces, and I'm sure it's described as to why one had the operating temp range centered and the other one to the right. At least the B bodies had numbers unlike the E Body Rally cluster that had no numbers at all.

 

[RemCharger]

Yes when you split the difference between 170 and 230, 200 is your number.
Is your gauge accurate? That's something we can't answer. Put a temp gun on your cooling passages by the thermostat.
Autometer makes great temp gauges.