Locomotive postcard

From: "Mike Manor" manor.mands@gmail.com

I have a postcard that I believe is from the early 1930’s that I think my uncle would have purchased while he was in the CCC. It is a picture of a locomotive, engine 4126 and tender. The caption reads:

Southern Pacific Company
Mallet Type Locomotive No. 4126
120 Ft. 10 ½ In. Long
931,600 LBS. Total Weight SP180

I am trying to find out when this postcard was published and any information about it.

—Mike Manor