I was asked by Jo and Eric if I had any photographs of the wall before it collapsed on 29 January 2009. Fortunately we finished all of our project field work last summer and we have the survey data and photographic images for the facades of each insula on both sides of via dell'Abbondanza - almost 900 meters in length. Our project, under the auspices of the SAP, is more fully described on our web site www.pompeiiperspectives.org.
Here is an image of the wall, which is situated between doorways 5 and 6 in Insula III,7, as it appeared in 2008. Click image to enlarge (we hope).