Issuma is the red boat behind the white-and-blue fishing boat, Adamantina. Adamantina has the kind of anchor (Northill style) typically seen on Brazilian fishing boats. These anchors are made to order by boatyards. I had wanted a bigger anchor for a long time. I tried to buy a Rocna, because their 55kg (120lb) model seemed the size I wanted, but Rocnas are not really available in much of South America. In Florianapolis, quite near to where I am now, Ancora Latina makes their Raya anchors. While the very helpful Ancora Latina folks did not have an anchor size that was as heavy as I wanted, their 40kg (88lb) anchor seemed like it would work well for my boat, AND they were willing to bring the anchor over and put it aboard to see if it would fit. Fitting a new anchor can be a big deal, so I took them up on their offer, they drove over with their Raya 2500 and we put it aboard and saw that it would fit with some work.The boatyard added another anchor roller beside the existing ones, made a lock mechanism to hold the anchor securely in place, and made a cleat (in Brazil, cleats tend to be made, not bought) to tie the anchor down for additional security (it is very important not to have a heavy, sharp anchor ever get loose at sea).