M. Graham 【Prussian Blue】15ml - Brand: M. Graham & Co. - Color: prussian blue - Volume: 15 ml - Series 2 - PB27 - Lightfastness: Ⅰ Prussian Blue 153 is a traditional iron-based blue with a very strong color. It has a more subdued and delicate expression than Phthalo Blue. Thank you for viewing. I purchased this as part of a set and am selling the colors that I already have. If you purchase multiple M. Graham paints together, we will deduct 200 yen from the second item onwards to cover shipping costs. Instant purchase is welcome.