Featured in this lot is this rare, bronze horse perpetual calendar sculpture from the Carlsbad Caverns in Whites City, New Mexico circa 1950-60s. Carlsbad Caverns National Park in New Mexico dates back 250 million years, when a 400-mile-long reef formed in an inland sea. The reef is composed of seashells, algae, sponges, and calcite that precipitated from the water. Carlsbad Cavern is one of more than 300 limestone caves on the fossil reef. In the 1870s and 1880s, ranchers and homesteaders saw vast clouds of bats flying in and out of the cave on summer evenings, making the cave opening a local landmark. President Calvin Coolidge designated the cave as a National Monument in 1923, and President Herbert Hoover set aside additional acreage for classification in 1930. In 1978, President Jimmy Carter declared the Carlsbad Caverns Wilderness. This bronze horse sculpture features a designated slot for the included perpetual calendar situated to the right of the horse. It features cards with months typed out on them as well as various numbered calendars so the user does not have to buy a new calendar each year. The definition of a perpetual calendar is, "a calendar that can be adjusted to show any combination of day, month, and year, and is therefore usuable year after year". Under the horse is a small emblem reading, "Carlsbad Caverns White's City, N.M.". The piece shows good condition overall with some wear present from its age and use over the years along with a nice patina. No obvious signs of damage is noted. The piece measures 2 11/16" L x 6 1/16" W x 4" H and weighs 1 pound and 2 ounces.