C & NW Railroad Roundhouse, Round House, Waseca, Minn. 5 1/2" x 3 1/2" black and white postcard photograph of the C & NW Railroad Roundhouse, Round House, Waseca, Minn. Print on front of postcard: "Kloss 11. C and N.W. Round House Waseca Minn"; Chicago and North Western train car caboose parked on tracks out front; train wheels and track in foreground; several tracks run parallel; located in southwest Waseca. Chicago and Northwestern Railroad. C & NW Railroad.