Two articles: 1st is 1937 INDOOR AVIARY...Built of mahogany and chrome-plated tubing, this aviary, with variations in the spacing of the bars, is suitable for a number of varieties of birds (dimensions and detail given)-two full pages 6 1/4" x 9 1/4" each, condition: EXCELLENT ... the second article is entitled Table-Top Aviary from 1933 and shows a page of illustrations with dimensions and details. very cool lot...Condition: Excellent. Certificate of Authenticity is provided showing this piece to be from an original magazine (not a copy).