Book: Thompson, Helen. Sewing Tools and Trinkets: Collector's identification and value guide (Vol 1).
• Multiple tier thread stand shown in background pg 33Book: Thompson, Helen. Sewing Tools and Trinkets: Collector's identification and value guide (Vol 2).
• Similar stands discussed pg 89 - 90Other: Killian, Jackie. Kay Hawthorne Collection of Needlework Tools.