Front Caliper Identification

[TOZNOVA81]

Bought these off someone on the nova Facebook page and I was told they were V6 calipers, one of them is fucked so I've been trying to source another, but euro's, GSF etc can't identify wtf they're off.
anyone on here have any idea?
TIA

http://i1167.photobucket.com/albums/q633/TozNovaGsi/L393KET%20Hungovernova%20Turbo/EE3F1A17-140E-4F92-B06B-C357001504A0_zpslotxbhn1.jpg

http://i1167.photobucket.com/albums/q633/TozNovaGsi/L393KET%20Hungovernova%20Turbo/09A3D95D-ACDA-4850-92D0-4C863A906734_zpskqfvmvet.jpg

[Southie]

Maybe 16v Astra brakes, this may help:
http://www.pngclub.com/forum/showthread.php?18698-Astra-16v-brakes&