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Not horse, but maybe this is the brush you want? A wider waste and a shorter loft than the Semogue 620, and the bristles are more upright as loaded. Omega Brush Pennelli da Barba e da Vernice

I like horse hair brushes, but not for face-lathering as the tips of the hairs are very pointy (as compared to badger and boar when viewed with a 10x acromat). That said, with Vie-Long I've found...