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The single line watermark (replacing the earlier, more oranate, double line watermark) was introduced in 1910. It was intended to produce less fragile stamps and be more uniform.
Denom. | Description | Mint | Used |
1 cent | Franklin green | $10.50 | $0.25 |
2 cent | Washington carmine | $10.50 | $0.25 |
3 cent | Deep violet | $28.50 | $1.80 |
4 cent | Brown | $47.50 | $1.00 |
5 cent | Blue | $47.50 | $0.70 |
6 cent | Red orange | $57.50 | $0.90 |
8 cent | Olive green | $160.00 | $13.75 |
10 cent | Yellow | $145.00 | $4.75 |
15 cent | Pale ultramarine | $340.00 | $16.75 |
Denom. | Description | Mint | Used |
1 cent | Franklin green | $3.65 | $2.50 |
2 cent | Washington carmine | $6.50 | $2.75 |
Denom. | Description | Mint | Used |
1 cent | Franklin green | $56.50 | $20.00 |
2 cent | Washington carmine | $115.00 | $70.00 |
Denom. | Description | Mint | Used |
1 cent | Franklin green | $260.00 | $95.00 |
2 cent | Washington carmine | $1,500.00 | $410.00 |
Denom. | Description | Mint | Used |
1 cent | Franklin green | $7.50 | $9.50 |
2 cent | Washington carmine | $52.50 | $35.00 |
Denom. | Description | Mint | Used |
1 cent | Franklin green | $36.50 | $37.50 |
2 cent | Washington carmine | $65.00 | $35.00 |
3 cent | Deep violet | $87.50 | $50.00 |
4 cent | Brown | $87.50 | $52.50 |
5 cent | Blue | $87.50 | $50.00 |
Issued to promote the upcoming 1915 Panama Pacific Exposition this commemorative set pays tribute to the explorer Balboa and the openning of the Panama Canal.
Denom. | Description | Mint | Used |
1 cent | Balboa | $23.50 | $1.65 |
2 cent | Panama Canal | $28.00 | $0.90 |
5 cent | Golden Gate | $110.00 | $9.75 |
10 cent | Discovery of San Francisco Bay Orange | $315.00 | $18.50 |
10 cent | Discovery of San Francisco Bay orange yellow | $175.00 | $21.75 |
When the Post Office changed to a different perforation on this set to strengthen the sheets, many collectors did not add the stamps to their collections - the result being that the newer Perf 10 variety is significantly harder to find.
Denom. | Description | Mint | Used |
1 cent | Balboa | $42.50 | $6.00 |
2 cent | Panama Canal | $105.00 | $2.75 |
5 cent | Golden Gate | $240.00 | $16.00 |
10 cent | Discovery of San Francisco Bay | $1,275.00 | $60.00 |
These prices for U.S. stamps are provided as a service to Hobbizine readers. They are derived from numerous sources such as dealer price lists, advertisements in philatelic publications, and public auction results. Use these values as a guideline for evaluating the reasonableness of dealer prices, setting up trades with other collectors, and estimating the worth of your collection. The value of an individual stamp is dependent on its centering and condition. The prices listed here are for well centered, undamaged stamps. A particularly nice example might sell for more than the amount listed, while a poor copy might be worth less.
The Death of Captain Cook - Norfolk Islands Stamp Issue of 1979
The Pan American Stamp Series of 1901
The United States Bank Note Stamps
The Problem of Color in Stamp Collecting
Siam - The Classic Stamps of Thailand
Bavaria and the First Stamp Issues of the German States