Grant from the National Scenic Byways Program funded restoration of Secret Experimental Room at Piquette Avenue plant in Detroit.
Drafting table where vehicle ideas were fleshed out.
Henry Ford enjoyed rocking in the Secret Experimental Room on occasion.
Drill press, milling machine and lathe, built in 1890s, were instrumental to Model T development.
Doreen Murphy
Crowd of hundreds came for Sunday's dedication.
Doreen Murphy
Timbers rough-sawed, just like more than 100 years ago.
Doreen Murphy
Line shaft provided power via 250V electric motor for tools and machines.
Carbon-arc light fixtures were 3-D custom printed to match lights in historical photos of secret room.
1909 Ford Model T Touring, built at Piquette, sits outside secret room where Henry Ford led its design.
Officials open doors to newly rebuilt Secret Experimental Room.
Doreen Murphy
Sign inside Piquette plant, which was built in 1904.
Doreen Murphy
In Piquette plant, before assembly line arrived, workers built vehicles by hand.
Piquette plant designated National Historic Landmark.
Doreen Murphy
Visitors at Piquette plant got Model T rides on Sunday.
Secret room was along back wall of Piquette plant, while Henry Ford's private office (pictured) was along front wall.
Appreciation of automotive history runs deep in Detroit.
Doreen Murphy
Lathe from 1890s still functions, powered by belt attached to overhead pulley.
Doreen Murphy
Calipers for old-school measuring.