These come in a green box without a factory cellophane seal. It's striped balls have the number in the stripe. The 6 and 9 balls have a curved underscore. There are no logos on the cue ball. It's font and style has been in use for at least the past 30 years. Both Premier and Standard share the exact same font and eight solid balls.
There are two points worth mentioning. Many years ago, Standard balls were sometimes sold in Premier boxes. Premier balls were marketed as the Millennium model in the last half of 1999 and came with a blue logo cue ball.