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Richard M.

Richard Marquina
2-year club

Collection Calculators Accessories

Quick facts:

  • Count: 128 graphing calculators (98 distinct models) View collection picture
  • Total weight: ≈ 33 kg / 73 lbs.
  • By series: 54x Casio (20x SH4, 17x Hitachi, 9x SH3, 6x Other, 2x V30MX), 50x TI (19x Z80, 17x Nspire, 6x 68k, 6x eZ80, 2x Other), 18x HP (8x ARM, 8x Saturn, 2x Other), 2x Sharp, 1x Citizen, 1x NumWorks, 2x Radio Shack
  • Oldest calculator: a TI-81 manufactured in December 1992
  • Newest calculator: a TI-84 Plus CE-T Python Edition manufactured in March 2023
  • Achievements:
    • Total earned: 26 achievements (1 feat of strength)