Dating an Antique Cast Iron Train

[Anonymous]

I need some help in dating an antique cast iron train.  I hope someone on the list can help.

My family and I were rockhounding around Tonopah, Nevada and I came across a few antique bottles.  There was a small circular piece of metal poking out of the ground and I pulled on it.  It was the smoke stack to a toy cast iron train.  It is rusted, and parts are missing, but the locomotive is actually in pretty good shape, considering it was buried in the desert.  There is a number on the train, well actually two.  They are 109 R and 109 L.  I assume this is 109 right and 109 left.  I can post a picture if this will help.  

 Thanks,

Jay