Attaching Envelope VerticallyFigure 3.10.72-1 is a 8 by 11 inch Form 1040A Page 2 with an envelope attached to back of return on top right side in a vertical position. Envelope postmark is facing outward. Return address on top left of envelope is Timothy Oak with a street address of 45 Onyx Street Phoenix, AZ 85026. Envelope is addressed to Internal Revenue Service Austin, TX 73301-0005. There are 4 text boxes to identify: where the 'staple' should be placed; the 'open side of envelope', the 'postmark', and 'back of form'.