Harley-Davidson 61ci EL Knucklehead 1939 press police motorcycle photo

Description

A superb and rare photo of the powerful
1939 Harley-Davidson 61 c.i. EL Knucklehead
Big Twin model.
In 1936 H-D introduced the 61 c.i. (1,000cc) OHV Knucklehead model series. Its massive V-twin overhead valve HD engine performed remarkably well.
Together with the new Knucklehead a new, more modern styling was introduced on the big
Harley
models. The
Harley-Davidson
Knucklehead
engine was named after the distinct shape of the rocker boxes. The V-twin engine featured two valves per cylinder which were operated by pushrods. It was the third type of V-Twin engine used by Harley-Davidson, replacing the Flathead engine in 1936 (which had replaced the F-head or IOE engine on big twins in 1930). The engine was manufactured until 1947 and was replaced by the Panhead engine in 1948. As the design of Harley-Davidson engines has evolved through the years, the distinctive shape of the valve covers has allowed
Harley
enthusiasts to classify an engine simply by looking at the shape of the cover. A knucklehead engine has round knobs on the cover resembling knuckles that give the knucklehead its name.
This is your rare chance to own this
non period
photo that reflects a very interesting and historic piece of motorcycle history. Therefore it is printed in a nice large format of ca. 8" x 10”
(ca. 20 x 26 cm).
Shipping costs will only be $ 7.00 regardless of how many photos you buy.   For 5 or more photos, shipping is free!
(Note: A. Herl, Inc. does not appear on photo, for ebay purposes only)
No copyright expressed or implied. Sold as collectable item only. We are clearing out our archives that we have gathered from various sources.
All items always sent well protected in PVC clear files
and board backed envelopes.
We have photographs that came from professional collections and/or were bought from the original photographer or press studio! They are all of professional and excellent quality.
After many decades of professionally collecting photographs and posters we are clearing out our archives. They make the perfect gift and are perfectly suited for framing. They will look gorgeous unframed and will be a true asset nicely framed with a border. They are a gorgeous and great asset in every home, workshop, workplace, restaurant, bar or club!
First come - first served. And you can always contact us for your requests. Please ask any questions before the auction ends.