Here is a lovely vintage silverplate master butter knife for everyday use or your holiday table. The pattern is Berkshire by International Silver. This pattern dates to circa 1897 and is no longer produced. It is a very nice pattern.
The knife is marked on the back of the handle: "1847 ROGERS BROS A1 and another small mark which we cannot decipher. "A1" is the manufacturers mark for their level of plating, and is considered indicative of a high quality plating.
The knife measures approximately 7-1/4"L and weighs 39.2 grams or 1.38 ounces. It is quite a substantial piece and in very good condition.