private void _UpdateFromLegacy()
        {
            // Search for the appropriate JMSML Library elements, given the older/legacy (2525C, 2525B, etc.)
            // SIDC for this Symbol.

            _librarian.ResetStatusCode();

            _version = _librarian.Version(1, 0);

            _legacySymbol = _librarian.LegacySymbol(_legacySIDC, ref _dimension, ref _symbolSet);

            if (_legacySymbol != null)
            {
                _affiliation = _librarian.AffiliationByLegacyCode(_legacySIDC.Substring(1, 1), _dimension.ID);

                if (_affiliation != null)
                {
                    _context          = _librarian.Context(_affiliation.ContextID);
                    _standardIdentity = _librarian.StandardIdentity(_affiliation.StandardIdentityID);
                    _sig = _librarian.StandardIdentityGroup(_standardIdentity);
                }

                _status    = _librarian.Status(_legacySIDC.Substring(3, 1), _legacySIDC.Substring(0, 1));
                _hqTFDummy = _librarian.HQTFDummy(_legacySIDC.Substring(10, 1));

                _amplifier = _librarian.Amplifier(_legacySIDC.Substring(11, 1), _legacySIDC.Substring(0, 1));

                if (_amplifier != null)
                {
                    _amplifierGroup = _librarian.AmplifierGroup(_amplifier);
                }

                _entity        = _librarian.Entity(_symbolSet, _legacySymbol.EntityID);
                _entityType    = _librarian.EntityType(_entity, _legacySymbol.EntityTypeID);
                _entitySubType = _librarian.EntitySubType(_symbolSet, _entityType, _legacySymbol.EntitySubTypeID);
                _modifierOne   = _librarian.ModifierOne(_symbolSet, _legacySymbol.ModifierOneID);
                _modifierTwo   = _librarian.ModifierTwo(_symbolSet, _legacySymbol.ModifierTwoID);
            }

            _librarian.LogConversionResult(_legacySIDC);

            _ValidateStatus();
        }