At one point, I thought I would have time to learn how to rehair and fix bows, but it hasn't happened yet and I am letting it go. Three of the bows I picked up at estate sales, pawn shops, and who knows where. The forth is a year old Vingabow brazilwood that already has a curve in it, but still works fine enough.The rest of them look straight. If you are interested in playing around with bows or know how to work on them, here is a project. I showed them to a bass maker a while back and he thought likely at least one of them could turn out pretty good. None of them have stamps on them. Anyway, I am clearing out my music room and time to let them go. I have found shipping bows is usually about $40, and I will split shipping with any buyer. Here is the link to the Vingobow. https://www.amazon.com/VingoBow-Brazilwood-Pernambuco-Performance-Unbleached/dp/B00JM93JSU In a trade I would be interested in a pickup that isn't an underwood which is what I have now, or maybe a set of strings.