The first and third marbles have wear and damage. The last three are Vitro. There are different style or types of machine made marble patterns. Patches, swirls, ribbons, corkscrews, etc. Some companies made only one type with many different color combinations. Some companies made more than one type. The brushed on term is associated more with Master Marble Co. and Vitro Agate Co. But other companies also made what is called a brush patch. Brushed patch usually refers to a patch type marble where the color looks brush painted on.