equatorjournal: Dick Wirth, Backyard ballooning: two people should be able to make a paper balloon i
equatorjournal: Dick Wirth, Backyard ballooning: two people should be able to make a paper balloon in a couple of hours…, 1978. From “Ballooning: the complete guide to riding the wings”, 1982.https://www.instagram.com/p/CRCPtGdFL8Q/?utm_medium=tumblr -- source link