Aurora Ipsilon Seasons Rollerball - Spring PrimaveraThe Ipsilon has been a staple in the Aurora line for over twenty years. In many cases, the Ipsilon was a likely introduction to the fountain pen world, as its vibrant colors, quality and price hit the mark for new writing enthusiasts. When many competing brands were limited to black and blue pens, it was the Aurora Ipsilon that arrived with fresh colors including yellow, red, green and more. And when nib sizes from the competition were limited to fine