• 7346 - Wijnja - July 1961 (est)
  • 7347 - Maesen - July 1961 (est)
  • 7348 - Kok - July 1961 (est)
  • 7349 - Steuten - July 1961 (est)
  • 7350 - Post, P. - July 1961 (est) - Peter Post, pro 1956-1972; rode RIH/Radium-RIH team 1956/1957/1958/1959
  • 7351 - no name - July 1961 (est) - T.R. - no frame measurements
  • 7352 - Swink - July 1961 (est)