253 
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 6A. — 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 “J°h n Bull” locomotive, 1831, and wooden switch 
lever, with signal and cross, 1835; also a pair °f cast i ron 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 and 9C. — 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. 
No. 9 E. — Collections of small sections of original rails from 
Amboy Div. Pennsylvania R. R. showing the development of the 
rail from 1831 to 1893. 
