S&DJR lavatory composite carriage no 34 1904

An interesting layout with four and a half Third class compartments, two First class and a toilet between Third and First. I can't recall where my information came from, but I have noted on the back that it was built in 1904 at Highbridge and withdrawn in 1930, by which time it had been number 5731 in the Southern Railway carriage stock list. The length was shown as 46ft.
I have now turned up a drawing in an article by Jem Harrison, that appeared in Model Railways in July 1980, of a '46ft 6 compt. compo luggage lav'.. That looks identical to this coach except that the half compartment at the left is now a luggage compartment with double doors and no windows. So that may be where I got the dimensions from.