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No Reserve: 35-Years-Owned 1951 Ariel Square Four for sale on BaT Auctions - sold for $23,000 on March 1, 2019 (Lot #16,725) | Bring a Trailer
![Ariel Square Four 4G MK1 & MK11 Piston Set & Liners IMD Piston Co. England - Engine & Transmission from Classic Bike Parts Cheshire UK Ariel Square Four 4G MK1 & MK11 Piston Set & Liners IMD Piston Co. England - Engine & Transmission from Classic Bike Parts Cheshire UK](https://classicbikepartscheshire.com/images/ariel-square-four-4g-mk1-mk11-piston-set-liners-imd-piston-co-england-p3627-4738_image.jpg)
Ariel Square Four 4G MK1 & MK11 Piston Set & Liners IMD Piston Co. England - Engine & Transmission from Classic Bike Parts Cheshire UK
![1952 Ariel Square Four for sale on BaT Auctions - closed on September 27, 2019 (Lot #23,336) | Bring a Trailer 1952 Ariel Square Four for sale on BaT Auctions - closed on September 27, 2019 (Lot #23,336) | Bring a Trailer](https://bringatrailer.com/wp-content/uploads/2019/08/15687361299f98764daimage4-e1568753355184.jpeg?fit=1152%2C768)