Re: I C S books

Tim,
Steal is right! I've paid anywhere from $10 to $40 per volume, depending on the title and scarcity!
Here's a list as developed by Steve Zuiderveen.
I. C. S. TEXT BOOKS
RAILROAD TITLES
Vol.# Title
501 Locomotive Boilers
502 The Steam Locomotive
502B The Steam Locomotive
503B Locomotive Valves & Valve Gears
504C Walschaert & Baker Valve Gears
505 Locomotive Valve Setting
505C Locomotive Valve Setting
506 Firing of Locomotives
507 Stokers, Grate Shakers, and Fire Doors
507C Locomotive Stokers
508D Locomotive Boiler Feeding Devices
509B Lubricators - Headlights
510 Locomotive Management
510C Locomotive Management
511C Locomotive Breakdown & Appliances
512B Train Rules
514B Compressors & Brake Equipment
515C #6 & #8ET Brake Equipment
516B Air Brake Troubles - Brake Rigging
517 Passenger Brake Equipment
517C Passenger Brake Equipment
518 Car Heating--Train Control
518N Brake Equipment for High Speed Trains
519 Automatic Control Equipment
520 Car Trucks
521 Draft Gears
522 Stock Cars, Car Roofs, and Doors
524B Yard Inspection of Trains
525 Railway Car Lighting
526 Westinghouse Air Brake
527 Erecting Work, Shoes and Wedges
528 Locomotive Frame and Cross-Ties
529B Rod, Wheel, and Pin Work
530 Automatic Train Control
560 Steel-Car Repairs Car-Shop Millwork
598 Freight Car Brake Equipment
598B Freight Car Brake Equipment
598C Freight-Car Brake Equipment
623 #6ET Locomotive Brake Equipment
624 #8ET Locomotive Brake Equipment
637 Diesel Locomotive - Trucks & Draft Rigging
638 2-Cycle Diesel Locomotive Engines
640 4-Cycle Diesel Locomotive Engines
641 Diesel Locomotive Auxiliaries
642 Electrical Equipment of Diesel Locomotives - I
643 Electrical Equipment of Diesel Locomotives - II
644 Diesel Locomotive Operation
645 #8EL Diesel Brake Equipment
Note: Subletters denote later editions of same title.