I discovered a copy of Hundleby's A7V book in the refrence section of my local library... I understand it's a 20 year old book & so much has been discovered and corrected since it's publication so I will ask the experts here.
Page 224 lower image, Krupp multi plate A7V with flexed suspension & crew in front... It is listed as 540... may I ask what is correct chassis number of this tank? (I cannot identify a name on the image I have).