Other features not shown on this banknote:
|Watermark||A watermark is put onto a banknote's paper prior to the printing process as a security device which deters counterfeiters. When held up to the light, a watermark is visible as either a grey image on a white background or vice versa. Whenever you see a blank spot on a bill, it is usually a watermark.|
Most banknotes have an issue date on the front which often includes not only the year of issue but also the month and day.
The three samples shown at the right exhibit the day, month and year in their dates. They are from Italy, France and Germany (top to bottom).
|Metallic Thread||Some sophisticated banknotes include a metallic thread woven into the paper of the money itself. Some of the newer U.S. issues include a metallic strip embossed with the denomination of the bill.|
The metallic thread is seen in the sample at the far left as a shadowy vertical line in the bank note from France. But in the note at the near left from England, the metallic strip is not embedded completely into the paper. At intervals it shows through as small shiny metal spots that look a bit like aluminium foil.
|Colourful Threads||A great number of modern banknotes include tiny little colourful threads manufactured into the paper. These are much smaller than the metallic thread and are usually lightly dispersed throughout the paper; however, sometimes a note will have a dense band of these colourful threads running through it which creates an interesting effect.|
Both of the examples at left are from Germany. The top contains blue threads only and does not contain any threads at all on the right 1/3 of the note. The bottom example contains both blue and red threads only in the right 1/4 of the note.
|Printer's Name||Oftentimes the printing company's name will appear on a banknote in very small letters (sometimes abbreviated also) usually in the white frame area at the bottom of the bill.|
|Overprints||It sometimes becomes necessary for an issuing authority to 'revalue' a country's money in order to combat extreme inflation. As a temporary measure while new notes are being printed and distributed, the existing notes are sometimes overprinted or stamped with a new value.|
At the far left is a 10,000 Bolivian Peso note which has been stamped with a new denomination of 1 Bolivian Centavo. At the near left is a Brazilian 1,000 Cruzado note which has been overprinted with it's adjusted value of 1 New Cruzado.
|Bar Codes ||This new note from the Netherlands includes a bar coded serial number on the reverse side. This facilitates high speed tracking of individual bills and acts as a deterrent to would be counterfeiters. |
|Colour Shifting Ink ||The new 1996 series of U.S. banknotes feature a durable colour shifting ink in one set of numbers which changes colour from metallic green to black depending on the angle you view it from. I believe this is the first set of banknotes ($20, $50, $100) to feature colour shifting ink because previous types of ink were not durable enough to be used on banknotes. |
|Microprint ||All Canadian banknotes feature microprint which is printing so small that it can barely be distinguished with the naked eye. As such, most people don't ever realize it is there. Upon inspection of a crisp uncirculated note with a magnifying glass, you will be able to see incredibly small printing designed to foil counterfeiters. There is currently no commonly available machinery or equipment (including computer scanners/printers or copying machines) capable of reproducing microprinting. |
|UltraViolet Ink ||Some banknotes have areas printed with UV ink. These areas are usually overprints over an existing patterned area. UV ink is invisible unless viewed under special UV light bulbs. Many collectors don't know that this exists on banknotes. There is a very good site with descriptions and photos of these examples at Glen's World Banknote Page (Ultraviolet Ink). I haven't seen this information anywhere else, it's definitely a 'must see'. |
|Holograms ||Another 'must see' item on Glen's World Banknote Page (Holograms) is his photos and discussion of the use and creation of holograms on banknotes. |