A very large plumbers turnpin, by far the biggest we have seen.

Made of ash wood rather than the usual lignum vitae or boxwood.

Almost 5¹/₂ inches (140mm) in diameter at its widest point and 8¹/₄" (210mm) in height.

2lb 8oz (1132g) in weight.

Raised mallet strike point to the end.

Various surface knocks and patina however this turnpin appears to have not been heavily used, please see images.

Impressive!