It's hard to know for ABSOLUTE certain if this is the RV-60 (one oven with WONDER OVEN accessory) or the RV-70 with two genuine ovens. Both used the same control panel. It is certainly ONE of the two models that I listed, though. 1955 was the year that BOTH the "speed heat" left front burner AND the thermostatic "heat minder" right front burner were introduced on the Imperial models.
had the large stove above it was a wedding present back in 56 it finally died in 97 when the gas board condemed it because it had a leak that could not be repaired .these pictures are from the combined manual and recipe book that came with it