A pack of four McKenzie & Holland single ring brackets, as used by the Hull & Barnsley and London, Brighton & South Coast Railway companies. These brackets were normally used with the trimmers and crosstreads in S08/6 and S08/7 - check with photographs of your chosen prototype before ordering.

The brackets are 17½mm (2'6") wide x 19½mm (2'9½") deep - the larger "triangle" goes adjacent to the base post.