This is an interesting example of an early slant sided window box. The box sides are attached with large, single dovetails and the base is nailed to the sides with early handmade nails. The box measures 15 3/4" long by 7 5/8" wide and 3 1/4" tall.
The hand painted decorations are flowers and butterflies on the long sides and bats on the two ends, all over a black background. The bottom was left unpainted. The bats are stylistically different than the flowers and butterflies which suggests they may have been painted at a different time or by a second artist. A review with black light suggests all decoration is early and not retouched or painted over.
In early times, before the bat became the universal symbol of evil, it was seen as symbolizing rebirth. The native American Indians used the bat as a totem symbol invoking night sight and, more generally, keen observation and the ability to see through illusion. It seems likely with the suspected age of this box that this interpretation of the bat design is more likely.
The box shows edge wear and minor paint loss consistent with age.