In Harley-Davidson's early years, engineering and styling advanced quickly and steadily in the evolution from motorized bicycle to true motorcycle. Conversely, tank graphics changed very little, and it wasn't until the mid-1930s that the traditional Harley-Davidson tank lettering gave way to more stylish graphics. After that, new designs came every few years, changing more-and more often-than the motorcycles themselves. As a result, tank graphics are often the best way to determine a restored bike's relative vintage.

Below are pictures of some of Harley-Davidson's early logos:

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1930-1932 harley-davidson tank logo
1930-1932 Harley-Davidson Tank Logo
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1903-1932:
Though colors were altered occasionally, the same basic lettering was used on Harley tanks for over three decades.

1933 harley-davidson tank logo
1933 Harley-Davidson Tank Logo

1933:
The first change to the logo appeared in 1933 when a bird-like scroll surrounded the usual lettering.

1934-1935 harley-davidson tank logo
1934-1935 Harley-Davidson Tank Logo

1934-1935:
Replacing the "bird" motif that lasted only a year was the "flying diamond" design of 1934.

1936-1939 harley-davidson tank logo
1936-1939 Harley-Davidson Tank Logo

1936-1939:
With the new Knucklehead engine came a new tank logo. Though it lasted only through 1939, a similar design has appeared on some recent models.

1940-1946 harley-davidson tank logo
1940-1946 Harley-Davidson Tank Logo

1940-1946: This was Harley's first metal logo (as opposed to a decal). Since World War II interrupted its tenure, relatively few motorcycles carried it. However, a near-copy is worn by the current 1940s-retro Old Boy.

1947-1950 harley-davidson tank logo
1947-1950 Harley-Davidson Tank Logo

1947-1950:
This simple design ushered out the Knucklehead and ushered in the Panhead -- and the Hydra-Glide.

1951-1954 harley-davidson tank logo
1951-1954 Harley-Davidson Tank Logo

1951-1954:
Arguably among the best of Harley's tank logos, this script design is a classic. In 1954 the same script was used but the underline vanished.

1955-1956 harley-davidson tank logo
1955-1956 Harley-Davidson Tank Logo

1955-1956:
The 1955 design added a background to the script along with a large "V" to capitalize on Harley's famous V-twin motor. It's another classic.

1957-1958 harley-davidson tank logo
1957-1958 Harley-Davidson Tank Logo

1957-1958:
This circular logo was fitted to the first Sportster and the first Duo-Glide. Two-toned paint was used on fuel tanks in 1956, but the schemes were more definitive for 1957-1958.

1959-1960 harley-davidson tank logo
1959-1960 Harley-Davidson Tank Logo

1959-1960:
The arrowhead logo was larger and more colorful that the previous one, and seemed to play off the 1947-1950 design.

1961-1962 harley-davidson tank logo
1961-1962 Harley-Davidson Tank Logo

1961-1962
: The "gun sight" logo was arguably less attractive than its arrowhead predecessor, and certainly less colorful.

Keep reading for more Harley-Davidson logos.

To learn more about Harley-Davidson and other classic motorcycles, see: