Ruby and Gold – but which maple is it?

I have a feeling this was the coral bark maple, Acer Sanko-Kaku - but then it is a quite mature shrub and not more than 4'tall, so that might rule it out. 'Corralinum' has the right stem, but the first flush of leaves are shrimp pink... I'll be looking out my copy of Vertrees 'Japanese…

Acer Sango-kaku

The rather beautiful Acer palmatum, Sango-kaku, in golden garb, photographed in the Woodland Garden at the Royal Botanic Gardens, Kew, yesterday In fact, this garden was full of delights - more maples, a marvellous Black Walnut, the totems of Cardocrimum giganteum mentioned earlier, Aconitums (flopped but still dangerously blue), Epimediums looking lush and vigorous...