Hello friends!
Today, I will introduce an object to you with a short article, see the following figure.
It is this kind of copper sheet, bulging on all sides, flat in the middle, the size of a copper coin, what is it.........
Publish the answer, see the figure below.
This is a blank (pī) cake, brass, diameter 20.1mm, weight 3.8g, plum blossom pentagram.
It seems that it is the raw material for making plum blossom pentagrams, plum blossom pentagrams have now withdrawn from circulation, and the billet cake is also rising, which coin is the billet in the picture below?
Slightly larger than the plum blossom five-cent coin, it turned out to be a billet of the 5-point Great Wall coin in the 1980s.
In addition to copper, there are also aluminum billets, and the picture below is a billet of chrysanthemum 1 dime coin.
Billet cake is an intermediate product of the coin making process, and the coin must be made first.
The cake is pressed from a large piece of metal material, and it is also subjected to surface heat treatment and sectioning, but there is no pressing of the edge teeth and ornamentation.
It seems that the coin billet cake is really not an ordinary broken copper sheet, and there is a certain process and added value of cultural relics.
The value is similar to ordinary coins, the better the product, the higher the value, and the good product has been sold to 300-500 pieces/ piece.
This is the Great Wall coin 2 corners of the billet cake, the score of 67, the price of about 60 yuan / piece, the score is higher, reaching 68, 69, the value is not the same, hundreds of pieces are possible.
This article ends here, thanks for reading!