American single drivers

The single driver steam engine had a place in European and especially British railways right up to 1900, but they seem to have been rare in the United States. While perusing the Joseph A.Smith collection http://www.nyysa.com/archive/code/collection.php?e=1
I came across this rather charming example from 1864 of perhaps the rarest type of all 4-2-4T :

data and full size image here:
http://www.nyysa.com/archive/code/detai ... rc=97&bb=1

can members share pictures of other American x-2-x engines?

Philadelphia & Reading 4-2-2s:
http://www.northeast.railfan.net/images/pr378.jpg
http://www.northeast.railfan.net/images/pr507.jpg
Technical data:
http://www.steamlocomotive.com/bicycle/?page=pr

And the only photo of the (in)famous Camden & Amboy 6-2-0s I've ever seen:
http://www.northeast.railfan.net/images/carr.jpg

Triplex wrote:Philadelphia & Reading 4-2-2s:
http://www.northeast.railfan.net/images/pr378.jpg
http://www.northeast.railfan.net/images/pr507.jpg
Technical data:
http://www.steamlocomotive.com/bicycle/?page=pr

And the only photo of the (in)famous Camden & Amboy 6-2-0s I've ever seen:
http://www.northeast.railfan.net/images/carr.jpg

That first one is VERY impressive... Vauclin compounding, wooten firebox, camelback design, singleton drive! An artifact of extreme oddities in railroad technology... Despite looking like an experimental design, (even though its a production model) it still has a classy appearance. Thanks for sharing that one.

The third... isn't that one of the famed Crampton Singles? The drivers were 8 or 9 feet in diameter if I recall correctly

Ive seen the wood cut of the "John Stevens",

didnt know there was a photograph !
according to the Wiki, C&A president Robert L. Stevens observed the Crampton engine while on a trip to England in 1847, and had his own shop design and build one based on his observations . http://en.wikipedia.org/wiki/6-2-0