If there is something in an estate inventory that is unfamiliar to you, do you determine what it is? Those items that "make no sense" may be clues to further research, or just interesting items to add a little "flavor" to your research. An inventory from Iowa mentioned a galvanic battery in the 1870s. It wasn't a big clue, but learning what it was certainly was interesting. And it's value compared to the other items in the inventory was significant.