Unusual Fenwick & Sailors Sterling Machine Part AZ 1-8 Bullet Back Dress Cufflin

c1950's unusual Fenwick & Sailors sterling silver bullet back style cufflinks featuring a unusual form. The heads look like a machined part of some type and are signed Az (z is in the form of what looks like a lightening bolt) 1-8. Probably a custom product. Good overall condition with age and use appropriate wear. Someone was proud of these.  Please review all of the photographs as they are of the actual item you are buying. Size: 19.21mm wide, a solid post and bullet style back.  Weight: 18.4 grams Hallmarks: Fenwick & Sailors Sterling. Main Stone: None Secondary Stones: None Notable: Good overall condition could use a proper cleaning. Please do check out my other items as I am happy to consolidate shipping! This item condition is overall Good condition. This item will be shipped via USPS Ground Advantage. IVL - W7