Hmmm Interesting...2 options,It has had the original style sleeve put on it,or there is another tap? Its consitency in styling to the aftermarket one on the right is seemingly exact but for the sleeve...Let me look into this one further as I still maintain there is only the one style made for this period of mowers,and the AM ones came out later as a replacement,possibly in the 60,s...Anyone else know of another Variant for the Rotos and Predicta? Id really like to know as well so I can amend my own records. Either way the one on the left we know is of the correct styling,and accurate for your Predicta Jonesy smile