Please ask the teacher to help me look at this wooden box. Is it collectible?

Elm belongs to the genus Ulmus of Ulmus. It mainly produces temperate, deciduous and tall trees, which are found all over the north, especially in the Yellow River basin.

After drying, shaping, carving and polishing, elm can make exquisite lacquer carving crafts. Russian old elm (purple elm) is the most classic, with the advantages of clear texture and less scarring. It is a precious material for making furniture. The raw material price of elm per cubic meter is about 1.500 yuan. The wood grain is straight, the pattern is clear, the wood has good elasticity, moisture resistance and corrosion resistance. Air-dried density: 0.68g/cm3. Wood has moderate hardness and is easy to dry, deform and crack. It is the first choice for making furniture. Beautiful patterns and elegant colors. Suitable for high-grade furniture, cabinets, Qi Diao handicrafts, etc. Don't call it elm, white elm or domestic elm.

See clearly the period of the Republic of China, which is very collectible.