Bunker question

Hello!

Terrain piece question if I may.

Would anyone know the make of the bunker in this picture? It seems to be
the same (model,. not same ONE) as that on p56 of the Stargrunt II rule
book.

Looked over at Ainsty, Armorcast, and Grendal and don't see anything
like it.

Thanks in advance for your help!

Bob

 http://www.users.globalnet.co.uk/~yith/cogs/larger/st/st09.jpg