Dale's Wheels Through Time - The 1937 Harley-Davidson Knucklehead - This Model EL features an all-1937 61c.i. Knucklehead engine along with the one-year-only Delphine Blue, striped in Teak Red and edged in
![1937 Harley Davidson knuckle head | Vintage harley davidson motorcycles, Classic harley davidson, Harley davidson knucklehead 1937 Harley Davidson knuckle head | Vintage harley davidson motorcycles, Classic harley davidson, Harley davidson knucklehead](https://i.pinimg.com/originals/c8/70/ee/c870eebc7ecb4597f0f1bc149aa3147e.jpg)
1937 Harley Davidson knuckle head | Vintage harley davidson motorcycles, Classic harley davidson, Harley davidson knucklehead
![1937 Harley-Davidson Knucklehead Gunning for High Six-Digit Price During August Sale - autoevolution 1937 Harley-Davidson Knucklehead Gunning for High Six-Digit Price During August Sale - autoevolution](https://s1.cdn.autoevolution.com/images/news/1937-harley-davidson-knucklehead-gunning-for-high-six-digit-price-during-august-sale-195194_1.jpg)