A section of the engine detail on the Union Pacific Steam Locomotive # 4012, aka "Big Boy", which resides on the grounds of the Steamtown National Historic Site in Scranton, Lackawanna County, Pennsylvania.
1947 Pacemaker Speed Graphic 4x5 large format film camera.
9 1/2" (241mm) Goerz Red Dot Artar process lens used with focal plane shutter of Speed Graphic.
Arista EDU Ultra 200 B&W film, shot at ISO 160.
1/30th second at F32.
Developed in Adox Rodinal 1:50 dilution for 6 minutes and 30 seconds @ 20 degrees Celsius in Jobo Multitank 5 with 2509N sheet film reels with drum placed on Unicolor Uniroller 352 auto-reversing rotary base.
4x5" negative scanned with Epson V600.