Thanks Wendy! I will follow up on that! There are two other "B" engraved pieces in the family, a pie server and a fruit server. Both of these date to the 1870's-80's. So they would have been given to my great-great-grandmother through the Bolles family members who raised her after her father's death, rather than dating to earlier times of her grandparents. I suspect that this Bolles spoon will end up dating to the same approximate time frame, but it is possible that it may be earlier. It will be interesting to find out. Thanks very much for your help!