FYI - this one is the standard 914 Fuel Gauge.
The 914 Combo Gauge has an OT Gauge where the big E-brake light is on this one, plus 4 small round warning lights across the middle (instead of 2 on this one) - including the revised e-Brake Warning Light.
Also, IIRC the combo gauge only came out with the 73 MY for the 2.0L without the OT in the center console, & were options on the 1.7/1.8 L models - up thru 76 MY.
Look at the gauge pix at p914.com under gauges if you need to see them.
Had my interest if a combo at first!