Paphiopedilum Yerba Buena 'White Cap', January 1971, roll 197101H4 slide 6
Paphiopedilum Youngianum, December 1973, roll 197312H7 slide 16
Paphiopedilum Youngianum, February 1974, roll 197402H11 slide 14
Paphiopedilum Youngianum, May 1971, roll 197105H7 slide 14
Paphiopedilum Youngianum, May 1971, roll 197105H7 slide 15
Paphiopedilum Youngianum, September 1971, roll 197109H3 slide 7
Paphiopedilum Youngianum, September 1971, roll 197109H3 slide 8
