Complex sentence: The photo propelled Arne Jacobsen's Model 3107 chair to prominence, even though the actual chair used was an imitation of the Model 3107, with a hand-hold aperture crudely cut out of the back to avoid copyright infringement.
Split into simpler sentences: The photo propelled Arne Jacobsen's Model 3107 chair to prominence. The actual chair used was an imitation, with a hand-hold aperture crudely cut out of the back to avoid copyright infringement.