Sartory Bass Posted on March 15, 2019May 17, 2019 by j aniano E. Sartory Bass original frog in ebony and nickel-silver. The owner asked me to make a replacement frog because the original had several cracks and they wanted a new one for everyday use. E. Sartory Bass replacement frog in ebony and nickel-silver. The frog is the same height, length and weight as the original. The overall weight of the bow and balance is maintained.