The issuance of Equality Coin is being carried out in an orderly manner, and currency is a matter that involves everyone, and everyone is discussing Equality Coins.

There are many people who try to use the equal coin to buy things, and feel that the equal coin is very convenient to use, and the three equal coins of one yuan, five jiao, and one dime have a clear weight, and they do not need to weigh to know the actual value of the money in their hands, and in the past, they used to use broken silver, and they had to weigh carefully.

It's easy to spend money, and it's easy to find money, but if you need to find copper coins, it's the same as before, and one dime can be exchanged for 120 copper coins, and it would be nice if you could sell a smaller equal coin.

People are talking about equality coins, but a small number of people, mainly women or young ladies from large families, are discussing a new product that the People's Chamber of Commerce has just launched - glass mirrors.

Mirrors, the standard configuration of large households, but not glass mirrors, but copper mirrors.

Bronze mirror is generally made of bronze with high tin content, the earliest in the Shang Dynasty as a sacrificial ritual vessel, in the Spring and Autumn Period and the Warring States Period to the Qin Dynasty are generally kings and nobles can enjoy, to the end of the Western Han Dynasty bronze mirror will slowly go to the people, is an indispensable living utensils for people.

Of course, the people at the bottom who can't even eat enough can't afford to use the copper mirror, which is like a stack of copper coins.

The price of the copper mirror is relatively expensive, and the use effect is very general, the clarity of the mirror image is far from being compared with the glass mirror, but there is no glass mirror before, everyone can only make do with the copper mirror.

It wasn't until the People's Chamber of Commerce began to sell glass mirrors that it soon attracted the attention of some large women and ladies.

In fact, glass mirrors appeared earlier in the land of China, also called glass mirrors, they were brought by the merchant ships of Western countries that came to the land of China, because glass is a fragile item, the merchant ship is easy to break the glass when it is turbulent in the sea, and there are not many glass mirrors that can reach the land of China.

The glass mirror can be called a treasure in the land of China, and the price is very high, and it is generally only available in the homes of dignitaries.

Guangzhou is located in the southernmost part of the land of China, and the most contact with Westerners, there are many people who have been in contact with glass mirrors in the city of Guangzhou, Jiang Ci, Xia Jingshan, Liang Xin and other large families have one or two glass mirrors, which are stored as treasures, and are worried about bumping into them.

And the size of these glass mirrors is very small, the length and width will not exceed ten centimeters, basically only the size of the palm of the hand.

The large size of the glass mirror is very easy to break in the transportation process, Western merchants gradually do not transport large glass mirrors, only transport small glass mirrors, even if it is only a small glass mirror, in the process of transportation also broken a lot, but as long as the glass mirror is successfully transported to the land of China, the value of a hundred times increased.

The time when the glass mirror appeared on the land of China was roughly in the Ming Dynasty, but the time when glass appeared on the land of China was much earlier.

The invention of glass on the land of China is closely related to bronze smelting technology.

The main raw materials of bronze are malachite, tin ore and charcoal, and the smelting temperature is about 1080 °C, while glass usually refers to the silicate compound that is melted, cooled and solidified, quartz sand is the main raw material for melting glass, and other raw materials include soda ash and limestone, etc., and the smelting temperature is 1200 °C.

In the process of smelting bronze, due to the melting of various minerals, the glass material will appear in the discharged copper slag of silicon compounds of silk or lumps.

Because a part of the copper particles invade the glass, so it appears light blue or light green, these translucent, bright substances attracted the attention of craftsmen, after their slight processing, can be made into exquisite glass decorations, so that after long-term practice and exploration, the ancient Chinese finally mastered the production technology and laws of glass.

The ancients called the glass "Liulin", "Liuli", "Liuli", and from the beginning of the Northern and Southern Dynasties, it was also called "Poli".

According to the records of "Guangya" and "Yunji", for a long period of time, "glaze" is a general term for glass beads and some other transparent substances burned with fire, and the "glaze" that people said in the Ming Dynasty is opaque and different from glass.

Although the ancient Chinese glass was an independent invention of the ancient Chinese, its development was slow, and it has maintained its inherent characteristics, which not only has the advantages of being colorful and shining, but also has the disadvantages of being brittle and brittle, not resistant to high temperature, and not adapting to sudden cold and heat.

This is because its main ingredient is lead barium, the firing temperature is low, lead barium glass is not suitable for making eating utensils, only suitable for processing into various ornaments, ritual utensils and burial goods, etc., therefore, compared with ceramics, bronze, jade tools, glassware is used in a narrow way, the development is not sufficient.

The glass transported from the West is mainly nano-calcium glass, which has good temperature resistance, strong adaptability to sudden cooling and heating, and its use and production volume are much greater than that of Huaxia glass.

To put it simply, there is glass production in the land of China at present, but it is glass with various colors, and it should be called colored glass, mainly as decorations, ritual vessels, funeral goods, etc., which cannot be made into glass mirrors, and there is no way to use them as door and window glass, so that the small pieces of glass mirrors transported from the West have become treasures.

Now the People's Chamber of Commerce has taken out the glass mirrors that people regard as treasures and sold them in large quantities, not only the palm-sized glass mirrors, but also the glass mirrors with large faces and even half the size of the human body, and the most important thing is the price of the glass mirror, which is very cheap, and the price of a palm-sized glass mirror is only one penny of silver.

Before that, the price of such a palm-sized glass mirror was as high as hundreds of taels of silver.

With the increase in glass production and the decrease in production costs, the price of glass mirrors sold by the People's Chamber of Commerce will continue to decline, so that ordinary people can afford it.

Now the price of glass mirrors is still high, so it only affects the middle and upper class families under the rule of the People's Army, who can buy glass mirrors with their own money at will.

When the wife of a large family buys a glass mirror from the People's Chamber of Commerce, and then takes out the glass mirror at a party and a group of women to watch it together, soon the People's Chamber of Commerce will come to buy the glass mirror.

Ladies and ladies also compare and contrast in the purchase of glass mirrors, and the glass mirrors are all big ones.

The palm-sized glass mirror only costs a penny of silver, the area is doubled, but the price is higher than the price of two glass mirrors, after all, glass is a fragile item, the larger the size, the easier it is to break, and the price is also doubled.

A glass mirror the size of a human face costs at least one tael of silver, and a one-foot square mirror costs as much as dozens of taels of silver.

Soon, the old man found the glass mirror that his wife or daughter had bought.