Thank you for your answer Christian. I checked out the Salmson 2 and the aircraft in the photo is most likely it. I had been going back and forth between the Avro 504 and Yokosuka K1Y but never suspected the Salmson. Now I notice that the Avro and Yokosuka have different tail fins.
Cheers, Quang
Dear modellers,
I've found a photo of a line of Japanese aircraft from the Rising Decals sheet but I can't seem to make it out the exact type of aircraft. From my point of view, this aircraft could either be a Sopwith Pup or a Nieuport 29.