Paphiopedilum ang-thong K68M1, June 1968, roll 196806H6 slide 15. This is apparently the original plant imported by the Keyes that led to Dr. Jack Fowlie's investigation of the popuation of this Paphiopedilum at Ang-Thong.
Paphiopedilum ang-thong K70T1, showing staminode, June 1970, roll 197006 slide 6. The collection number presumably indicates that this plant was imported or acquired by the Keyes in 1970, imported from Thailand. The original ang-thong plant was imported several year earlier, but more specimens were later collected in the same area.
Paphiopedilum keyesianum, May 1971, roll 197105H7 slide 9
Paphiopedilum keyesianum, September 1974, roll 197409H3 slide 11
Paphiopedilum keyesianum, September 1974, roll 197409H3 slide 12
Paphiopedilum ang-thong, September 1976, roll 197609H2 slide 4