Wirecut bricks are smoother and fit together cleaner than handmade bricks, so many modern buildings are made using these. They are machine made bricks, made by using thin wires to shape the clay rather than moulds. Some wirecut bricks are made by hand, but they are generally machine made.
If you are looking for a sleek, clean looking building but want your bricks to have the character and charm of an older building, adding to the looks and often value of the building, reclaimed wire cut bricks may be the best option.