[Leendert]

One of my daughters surprised me with a birthday present: a big wall photo of a WW1 type bomber. No visible markings on it, but I've determined it to be a HP O/100.
One little puzzle remains. On some pictures these planes have wings with an equal span, while on other the spans have an unequal length (top one longer, lower one shorter).
Could this indeed be the case (different subtype), or should I look further?

Thanks for all info.

Regards,

Leendert