Black Sabbath started in 1968 and is widely recognized as being the first Heavy Metal band. The sound used many heavy riffs made famous by Toni Iommi's down tuned guitar. Ozzy Ozborne is the iconic singer.
Embroidered Patch: Patches of this type are typically made from canvas with the design and edge done in embroidery. These can be applied onto your project by glue, fabric ahesive, or some have iron on material. Typically sewing them on is the best form of attachment.
