Hi Al and welcome to Eribafolk.
Your VGN no 253863 makes it a Pan/Familia made in 1990. 
Looks like you've got a front kitchen (fridge vents) so therefore the nearest modern day equivalent would be Familia 320.
However, if you look at this 1988 brochure http://www.oldiecaravan.de/Hersteller_A_...a_Hymer1988.pdf, near the bottom there are Eriba Touring Layouts and in those days the Pan came with a front kitchen, long beds and a cupboard washroom which is, I suspect, what you've got.
The only Familia model at that time was the equivalent of todays 310, which is a 3 berth with side kitchen and short cross bed sleeping.
The newer 320 version has short cross beds, is a 2 berth but has a front kitchen and a full toilet/washroom.
Randa