Can you help to identify these frames, bikes or parts?

My track Gazelle has Piet de Wit in fancy graphics on the top tube which may mean that the colours were customised by his shop, anyway it looks like this. Also Jos is Dutch and knows a lot about Gazelles, you could PM him.

That's very nice indeed chap. Have seen a few Gazelle frames but Mondial road at Jos's pad and are original as per Aroogah's.