Diamond T?

When sorting through some things today I came across this image which is not captioned. Is it a Diamond T?

Perhaps someone can confirm exactly what it is please?

Diamond Reo?

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Originally Posted by Flying10uk

When sorting through some things today I came across this image which is not captioned. Is it a Diamond T?

Perhaps someone can confirm exactly what it is please?

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Yes, its a Diamond T 980 M20 Prime Mover.