1918 3c Washington, imperforate, violet
# 535 - 1918 3c Washington, imperforate, violet
$12.00 - $140.00
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535 - 1918 3c Washington, imperforate, violet
| Image | Condition | Price | Qty | |
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Mint Stamp(s)
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 17.00
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$ 17.00 |
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Used Single Stamp(s)
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 18.00
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$ 18.00 |
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Mint Stamp(s)
Very Fine
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 20.00
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$ 20.00 |
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Unused Stamp(s)
small flaws
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 12.00
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$ 12.00 |
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Mint Center Line Block
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 95.00
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$ 95.00 |
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Used Stamp(s)
small flaws
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 12.00
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$ 12.00 |
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Mint Stamp(s)
Fine
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 17.50
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$ 17.50 |
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Mint Stamp(s)
Very Fine, Never Hinged
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 22.50
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$ 22.50 |
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Mint Stamp(s)
Extra Fine
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 22.50
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$ 22.50 |
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Mint Stamp(s)
Fine, Never Hinged
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 20.00
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$ 20.00 |
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Mint Top Arrow Block
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 75.00
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$ 75.00 |
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Used Block of 4
small flaws
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 50.00
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$ 50.00 |
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Used Block of 4
Ships in 1-3 business days.
Ships in 1-3 business days.
$ 75.00
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$ 75.00 |
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Mint Plate Block
Usually ships within 30 days.
Usually ships within 30 days.
$ 140.00
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$ 140.00 |
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Mounts - Click Here
| Mount | Price | Qty |
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U.S. #535
1918-20 3¢ Washington
1918-20 3¢ Washington
Issue Date: September 30, 1918
Printed by: Bureau of Engraving and Printing
Method: Offset printing
Watermark: None
Perforation: None
Color: Violet
U.S. #535 is the only imperforate Series of 1918-20 3¢ stamp produced by offset printing. It was only produced with Type IV plates of 400 subjects.
Offset Series of 1918-20
With the introduction of offset printing, the Bureau began its first experiment in mass production. Although millions of stamps were being printed each day with the conventional flat bed presses, this new method allowed for the printing plates to be produced automatically. Therefore, the plates could be prepared containing as many as 1600 stamps as compared to the old plates, which only had 400 per plate! These were the largest plates ever produced.
The process for making offset plates was basically performed with a camera and required no engraving or transfer rolls. An enlarged photograph of an engraved die proof was retouched to emphasize the shading lines and then photographed to create the “master negative.” This negative was placed in a special repeat machine, which photographically reproduced the positive impression on a glass plate. The image was repeated until the desired number of stamps was positioned on the plate.
From this glass plate, a celluloid negative, called a “mask,” was created, and at this stage, the plate numbers and guidelines were added. Finally, a positive impression was made on a steel plate, which was the actual plate used in printing.
Several differences distinguish stamps printed by offset from a flat plate stamp. The most noticeable is the lack of texture if one runs a finger lightly across the stamp’s surface. Because the ink lies flat on the paper, an offset stamp will feel very smooth, while the flat plate stamp, that is engraved, will have tiny grooves and ridges. Also, the ink used in offset printing is of a different quality and will vary in color when compared to the flat plate stamps. All stamps printed by the offset process will appear blurry and have less-defined images.
U.S. #535
1918-20 3¢ Washington
1918-20 3¢ Washington
Issue Date: September 30, 1918
Printed by: Bureau of Engraving and Printing
Method: Offset printing
Watermark: None
Perforation: None
Color: Violet
U.S. #535 is the only imperforate Series of 1918-20 3¢ stamp produced by offset printing. It was only produced with Type IV plates of 400 subjects.
Offset Series of 1918-20
With the introduction of offset printing, the Bureau began its first experiment in mass production. Although millions of stamps were being printed each day with the conventional flat bed presses, this new method allowed for the printing plates to be produced automatically. Therefore, the plates could be prepared containing as many as 1600 stamps as compared to the old plates, which only had 400 per plate! These were the largest plates ever produced.
The process for making offset plates was basically performed with a camera and required no engraving or transfer rolls. An enlarged photograph of an engraved die proof was retouched to emphasize the shading lines and then photographed to create the “master negative.” This negative was placed in a special repeat machine, which photographically reproduced the positive impression on a glass plate. The image was repeated until the desired number of stamps was positioned on the plate.
From this glass plate, a celluloid negative, called a “mask,” was created, and at this stage, the plate numbers and guidelines were added. Finally, a positive impression was made on a steel plate, which was the actual plate used in printing.
Several differences distinguish stamps printed by offset from a flat plate stamp. The most noticeable is the lack of texture if one runs a finger lightly across the stamp’s surface. Because the ink lies flat on the paper, an offset stamp will feel very smooth, while the flat plate stamp, that is engraved, will have tiny grooves and ridges. Also, the ink used in offset printing is of a different quality and will vary in color when compared to the flat plate stamps. All stamps printed by the offset process will appear blurry and have less-defined images.