This is not possible. The number at the back is just a serial number out of a bunch of cards.
The first greeting cards were made in the early 1400's.
bar code
Hallmark Cars made both Bushes and American Greetings made Clinton's. I don't know who made Obamas card
The first birthday greeting card was made in 1976. It was produced by Hallmark, which is now a very well known business. The man who sent it was William White.
The first known greeting card dates back to the ancient Chinese, who would exchange messages of good fortune during the New Year celebrations as early as the 15th century. However, the modern custom of sending greeting cards began in the 19th century, with the first commercial cards produced in England around 1843. These early cards were often hand-painted and featured intricate designs, marking the beginning of the greeting card industry as we know it today.
Zazzle is a website where Christian greeting cards are custom made by the client. Heavens Inspirations is a site that provides bible verses and messages which can be used for greeting cards or craft projects. American Greetings card company has print out Christian greeting card options on their webpage.
Greeting card printing should be available from your local printing shop. There are also companies available online, such as PS Print, Digital Print Plus and Cards Made Easy.
It will depend on the type of card you have. Usually, codes are found on the back of cards and are made up of letters and numbers.
Many websites offer a Christmas Card message for either a handmade card or as an e-card. Homemade-Gifts-Made-Easy and Greeting-Card-Messages are a couple of examples.
A greeting card industry does exist, they are indeed made and sold, so there are some people who do have a career in making greeting cards. The manufacture of greeting cards involves writing, graphic design, and printing; each phase employs someone.
Egyptians made all the numbers back in B.C.
Generally they're made out of anything that can be converted to a card so yes they can be made out of bamboo. How practical that is that's another thing.