E represents the planet Earth. The object E shows more erosion than M, suggesting it was formed from softer material, as noted later. The distance SE on the surface of Mars is 24.1km. The mean radius of Earth is 6371km. A circle of this radius fits the M 'face' reasonably well and shows that the size of E in relation to M is similar to the relative size of Earth and Mars.
V represents the planet Venus.
This is a mountain of conical shape and has a circular or spiral terrace at about the half way height. It does not have a 'face', perhaps indicating that Venus was known to be shrouded in white cloud. The distance SV on the surface of Mars is 18.1km. This may mean that the orbit of Venus has changed since the model was made. Venus is a very strange, hot planet, which may have suffered a serious cosmic collision causing an orbital change, retrograde motion and high surface temperatures in addition to other evidence of past surface disturbances.