Abstract: An assembly for a motor vehicle has an opening granting access to a fuel tank filler. A fascia is mounted to the motor vehicle and has a slot grant access to the opening and the fuel tank filler. The assembly has a rear fuel tank door with a pair of mounting brackets for pivotably mounting the rear fuel tank door to the motor vehicle. The rear fuel tank door has a pair of upper turned lips and a pair of square apertures. A pair of expandable plastic nuts are received by the square apertures of the rear fuel tank door. A license plate is received by the upper turned lips of the rear fuel tank door and secured to the expandable plastic nuts. A flexible splash shield is sandwiched between the license plate and the rear fuel tank door and has a pair of slits for receiving the upper turned lips and a pair of square holes that aligns and register with the square apertures and receiving the expandable plastic nuts.

Abstract: A coronametric instrument includes first and second optical axes respectively responsive to first and second fields of view slightly removed from the sun. The first optical axis is adapted to be pointed at the sun, while the second axis is slightly angularly displaced from the first, having an intersection approximately at an entrance aperture of the instrument. On the first axis first and second occulting discs are respectively positioned in front of and behind the entrance aperture. The first occulting disc shades the entrance aperture from direct solar radiation. A lens system and the discs are arranged so that a slightly out of focused image of the first disc is formed on the second disc so that the second disc absorbs light diffracted from the first disc.