I've come across an Engine Triple Gage (Oil Temp, Oil Pressure, Fuel Pressure) made by GE Canada, with what appears to be an RCAF Ref part number: REF 6AA/624, and I'm attempting to determine what aircraft may have used it. I'm hypothesizing that it was used in a Canadian-manufactured aircraft, either late 1940's or 1950's vintage based upon its design. As opposed to the typical WWII-era AN-5773 and AN-5774 versions, which directly measure pressures pneumatically and temp with a capillary tube, this GE model is completely electrical. Looks NOS to me as the lower left mounting hole still has a tamper-evident GE seal on it.
Any insights from our Canadian warbird friends?

More photos are here:
http://aeroantique.com/products/engine-triple-gauge-oil-pressure-oil-in-temp-fuel-pressure-ge-dj3.