Bendable Sound: Exploring the often forgotten, but resurfacing niche of collecting Flexi-discs - Goldmine Magazine: Record Collector & Music Memorabilia
THE JAM - Move On Up, flexi disc, 7" promo, PAULO 100, silver font: Amazon.co.uk: CDs & Vinyl
Forgotten audio formats: The flexi disc | Ars Technica
Flexi disc - Wikipedia
Flexi Record Options - One-Sided, Two-Sided, Postcard - Pirates Press