E. F. Johnson Company Invitation. Opening of new general offices and manufacturing facility June 1961. Material: paper. Size: 7" x 9 1/4". Description: white paper; black print: "You are most cordially invited to attend the formal opening of our new general offices and manufacturing facility at 10th Avenue, Southwest, Waseca, Minnesota, from six to nine-thirty pm on Saturday, the third of June, nineteen sixty one. Refreshments and plant tour."; at bottom black and white sketch of new building located on 10th Avenue South West, Waseca, MN; 299 Johnson Avenue South West, Waseca, MN; "E. F. Johnson Company, Waseca, Minnesota."