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HALL 41. 
Cases 1, 2, and 3 . — Containing samples of material tested 
by department of chemical and physical tests of the Pennsylvania 
Railroad Company. 
Case 4:. — Relics. of early railroad days— lanterns, headlights, 
pieces of track, etc., etc. 
Case 5. — Models showing early train signal and early block 
signals, together with rails, section of track system, switches, and 
frogs. 
No. 6.— The original Saxby and Farmer interlocking switch. 
This is the earliest successful switch ever used in America. 
Stand GA. Relics of early rail joints, car springs, etc., etc. 
Stand 6B. — Relics of early track appliances, etc., etc. 
No. 7. Original Camden & Amboy car, 1836, standing on 
the original block stone and the original rail of that period. 
No. 8 . An original section of early wooden stringer and 
strap-rail construction, together with one of the original driving 
wheels of the “John Bull locomotive, 1831, and wooden switch 
lever, with signal and cross, 1835; also a pair of cast iron wheels 
on axle, passenger equipment, 1846, and specimens of early rail- 
road track. 
No. 9A. Section of original “T”-rail track, laid on original 
stone block and ties. Old Portage Railway. 
Nos. 9B OjHd 90. Two pair Camden & Amboy wooden 
passenger car wheels, 1848. 
No. 9D.— Freight car wheel, with split-hub keyed to the 
axle. On the east side of the car are old rails, etc. On the west 
side are models of early railroad appliances. 
