Saving this one for later!
40+ minute instructional on dirty boxing. As far as I can figure out, the Irish have a traditional bare-knuckle style. There is some information about it here. The video goes straight into technique, and gives no information on the background or culture of the style. The style looks sporty, sophisticated and kinda brutal.
Irish Boxing is part of the martial tradition of Irish Travellers, groups of ethnic Irish “gypsies”, whose culture includes a love of bare-knuckle boxing matches. There have been documentaries on this topic. John L Sullivan, one of the greatest historical bare-knuckle fighters came from this tradition.