Frost Insecticide advertising postcard mailed to Mr. F.M. Whiting of Johnson, VT. Lamoille Co. The card advertises "Arlington" Oil to kill scale in orchards. The postcard includes a 1 cent stamp. #2012.6.340a is addressed to: Mr. F.M. Whiting, R.D. 3-22, Johnson Vt. #2012.6.340b is addressed to: Mr. J.L. Perham, Wilton, N.H.