Incident
Prior to landing, the pilot extended the landing gear but noted that the gear down and locked indicator was not illuminated. The pilot then manually extended the gear, but the indication still showed the gear was not down and locked. Observing the main gear visually, the pilot confirmed it was extended but was unsure if the nose gear was extended.
Landing Sequence
The pilot flew by the control tower, and the controller reported that the nose gear appeared to be in the down position. The pilot proceeded to land the airplane, touching down with the main wheels first and holding the nose wheel off the runway as long as possible. When the nose wheel finally touched down, the airplane veered to the right. The pilot applied brakes and back pressure on the yoke.
Post-Landing
As the airplane exited the runway, the nose wheel collapsed and the airplane nosed over. There was no evidence of mechanical failures or malfunctions having caused the gear collapse. The pilot reported that the airplane had experienced a previous hard landing.