When the wheels stop turning

Rail car wheels and axels arranged on the ground at the former East Broad Top Railroad in Orbisonia, Huntington County Pennsylvania.   

Technical details:
Toko 4x5 wooden large format field camera.  
150mm F6.8 Rodenstock Geronar lens in Copal BT shutter. Yellow/Green filter on lens. 
Ilford FP4+ B&W film, shot at ISO 100. 
1/15th second at F32. 
Developed in Pyrocat HD at 1:1:100 dilution for 8 minutes @ 20 degrees Celsius in Jobo Multitank 5 with 2509N sheet film reels with drum placed on Unicolor Uniroller 352 auto-reversing rotary base. 
Negative scanned with Epson 4990 on holders with ANR glass.