This is record Autodesk.AutoCAD.DatabaseServices.GeoCSProjectionCode.

Public Enum GeoCSProjectionCode
  Alber = 4
  Azede = &H3b
  Azmea = 11
  Azmed = 7
  Bipolar = &H1f
  Bonne = &H18
  Cassini = &H16
  Eckert4 = &H19
  Eckert6 = &H1a
  Edcnc = 12
  Edcyl = 20
  EdcylE = &H43
  GaussK = &H2e
  Gnomonic = &H13
  Goode = &H1c
  Hom1uv = &H501
  Hom1xy = &H502
  Hom2uv = &H503
  Hom2xy = &H504
  Krovak = &H2f
  Krvk95 = &H33
  LL = 1
  Lm1sp = &H24
  Lm2sp = &H25
  Lmblg = &H26
  Lmbrtaf = &H41
  Lmtan = 8
  Miller = 13
  Mndotl = &H29
  Mndott = &H2a
  Modpc = 10
  Mollweid = &H1b
  Mrcat = 6
  MrcatK = &H31
  Mstero = 15
  Neacyl = &H1d
  Nerth = &H37
  Nrthsrt = &H40
  Nzealand = &H10
  OblqM = 5
  Obqcyl = &H38
  Ortho = &H12
  Ostn02 = 60
  Ostn97 = &H3a
  Ostro = &H22
  PlateCarree = &H44
  Plycn = 9
  Pstro = &H21
  Pstrosl = &H35
  PvMercator = &H45
  Robinson = &H17
  Rskew = &H505
  Rskewc = &H506
  Rskewo = &H507
  Sinus = &H11
  Sotrm = &H2b
  Sstro = &H23
  Swiss = &H20
  Sys34 = &H39
  Sys34_01 = &H42
  Sys34_99 = &H3d
  Teacyl = 30
  Tm = 3
  Trmeraf = &H36
  Trmrkrg = &H3e
  Trmrs = &H2d
  Unknown = 0
  Utm = &H2c
  Vdgrntn = &H15
  Wccsl = &H27
  Wccst = 40
  Winkl = &H3f
End Enum

public enum GeoCSProjectionCode {
  Alber = 4,
  Azede = 0x3b,
  Azmea = 11,
  Azmed = 7,
  Bipolar = 0x1f,
  Bonne = 0x18,
  Cassini = 0x16,
  Eckert4 = 0x19,
  Eckert6 = 0x1a,
  Edcnc = 12,
  Edcyl = 20,
  EdcylE = 0x43,
  GaussK = 0x2e,
  Gnomonic = 0x13,
  Goode = 0x1c,
  Hom1uv = 0x501,
  Hom1xy = 0x502,
  Hom2uv = 0x503,
  Hom2xy = 0x504,
  Krovak = 0x2f,
  Krvk95 = 0x33,
  LL = 1,
  Lm1sp = 0x24,
  Lm2sp = 0x25,
  Lmblg = 0x26,
  Lmbrtaf = 0x41,
  Lmtan = 8,
  Miller = 13,
  Mndotl = 0x29,
  Mndott = 0x2a,
  Modpc = 10,
  Mollweid = 0x1b,
  Mrcat = 6,
  MrcatK = 0x31,
  Mstero = 15,
  Neacyl = 0x1d,
  Nerth = 0x37,
  Nrthsrt = 0x40,
  Nzealand = 0x10,
  OblqM = 5,
  Obqcyl = 0x38,
  Ortho = 0x12,
  Ostn02 = 60,
  Ostn97 = 0x3a,
  Ostro = 0x22,
  PlateCarree = 0x44,
  Plycn = 9,
  Pstro = 0x21,
  Pstrosl = 0x35,
  PvMercator = 0x45,
  Robinson = 0x17,
  Rskew = 0x505,
  Rskewc = 0x506,
  Rskewo = 0x507,
  Sinus = 0x11,
  Sotrm = 0x2b,
  Sstro = 0x23,
  Swiss = 0x20,
  Sys34 = 0x39,
  Sys34_01 = 0x42,
  Sys34_99 = 0x3d,
  Teacyl = 30,
  Tm = 3,
  Trmeraf = 0x36,
  Trmrkrg = 0x3e,
  Trmrs = 0x2d,
  Unknown = 0,
  Utm = 0x2c,
  Vdgrntn = 0x15,
  Wccsl = 0x27,
  Wccst = 40,
  Winkl = 0x3f
}