Hi Nick,
Thanks for the reply. Yes the site you link to is very useful for unit markings and is usually my first call.It's a great starting point but only has one unit emblem per unit so doesn't pick up on units with changing emblems eg SOP 214 a couple of posts down in this thread or perhaps the Nieuport on the French Photo Album thread. Still life would be much harder wothout the work the site owner has done.Hat tip
Regards,
Clint