Can anyone help with this? The dimensions are 85mm diameter x 305mm length. The driving band appears to be a simple, single copper band that has discoloured with age. Despite the dodgy photo, the 'line' around the ogive is not a join but is actually a large crack which tapers down the body of the shell. The base is solid but appears as though it may be screw threaded. Way to rusty now to confirm with any certainty. No other markings are present. Very heavy, query solid shot. The dimensions suggest a 3 pounder? The area behind the driving band with the 'lugs' sticking out is confusing and unusual looking. The 'lugs' are arranged in 2 rows around the base and evenly spaced apart. Hope somebody can help because I am baffled!

