class HC-11 covered hoppers

[NW Mailing List]

In looking through the image archives I found a set of photos for the HC-11 covered hoppers.  At first glance, these look like regular H-11 hoppers with extended height sides and a lid.   The built date appears to be 1961.

Does anyone have the actual diagrams or dimensions of this car?  What was their intended service?

Thanks in advance, 
Brent Greer 
 		 	   		  
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