The actual land where the HUTTON factory was located is private (there are plans to build condos there). The best way to look for HUTTON bricks is to go to the public Kingston Point Beach (there may be a parking fee in summer). This is located just south of the old brickyard. Walk along the Hudson River shore there at low tide. You will find hundreds of bricks. Most are broken but the challenge is to find an unbroken one with a nice clear brand inprint in the frog. HUTTONs are quite common and turn up at lots of other public places as well. Have fun.