WW1/WW2 RFC/RAF Message streamer

Looking for one or two WW1 RFC message streamers – i’m told the same type was used in WW2 by the RAF so are relatively easy to find, and inexpensively too. Here’s a link to a picture of one for those that don’t know – any leads etc let me know, it’s for a display on WW1 co-operation between aircraft and ground forces

http://www.kaisersbunker.com/rfc/rfc14.htm

Cheers, Rob