It is the symbol 17 in Gong Ling of Mount Tai.
Lingqian refers to divination tools made of bamboo and wood and marked in temples or Taoist temples. Generally, after obtaining the sign, the sign is delivered to the monk (Taoist) for "release". Interpretation is a paid service, and the income is used to repair the temple Taoist temple. Generally, shake the bamboo stick to jump out or directly draw it out, then get the corresponding sign number of the bamboo stick, find the corresponding poem, and predict good or bad luck and the direction of handling things according to the level and content of the poem.