Let me show you a design I made over ten years ago. It was originally created using a rubber stamp and red ink. Unfortunately, I lost it when I moved. This year, during the New Year holiday, I accidentally found a BMP image with a dot matrix style that I had created using Windows Paint on my backup hard drive. So, I ordered a new one from Taobao, complete with its own ink oil, as a nostalgic purchase.
The prototype photos are shown below:
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