ELECTRIC LIGHT ORCHESTRA Mr. Blue Sky / One Summer Dream (Rare 2018 UK white label 7" test pressing. This is for one of the discs the from the singles box set. The disc in the box was pressed on Blue Vinyl with this test pressing on Black Vinyl, withplain white labels and housed in a plain die-cut paper sleeve with two stickers attached with details about each song. These were manufactured in tiny numbers purely to test the sonics & never intended for sale to the general public. Thisremains in a near mint condition and looks to have never been played!)