Here’s a Spanish example posted this morning on the ‘ERF clearing-house’ thread by Ste46. Steve says the ERF has had most of its parts removed. He took the picture in Rebagliato Dolores and suggests that it might have been based in the Alicante area. For his full explanation, here’s the link:
viewtopic.php?f=35&t=137287&start=90
Cheers, Robert