2004 December 29: Letter to City of Pittsburgh Director of General Services Dale A. Perrett from Friends of the Zeiss Project Director Glenn A. Walsh officially notifying City of Pittsburgh [as required by Pittsburgh Historic Preservation Ordinance to notify building owner] regarding application form submitted nominating The Buhl Planetarium and Institute of Popular Science to be a City-Designated Historic Structure.
2004 December 29: Courtesy letter to Children's Museum of Pittsburgh Executive Director Jane Werner from Friends of the Zeiss Project Director Glenn A. Walsh officially notifying the Children's Museum of Pittsburgh [current tenant of The Buhl Planetarium and Institute of Popular Science] regarding application form submitted nominating The Buhl Planetarium and Institute of Popular Science to be a City-Designated Historic Structure.
Letter to Children's Museum Board - 2004 November 26
Statement before Allegheny Regional Asset District Board - 2004 November 29:
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Statement before Pittsburgh City Council - 2004 November 30:
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2004 October 12: Letter to Pittsburgh City Councilman Bill Peduto from Friends of the Zeiss Project Director Glenn A. Walsh thanking him for information regarding possible flood damage to three major Buhl Planetarium artifacts; these three were unaffected by the flood of 2004 September 17 and 18. However, letter also asks for an investigation regarding possible damage to several other pieces of historic Buhl Planetarium equipment and artifacts (not mentioned in Carnegie Science Center reply to City), stored in The Carnegie Science Center warehouse, due to rain runoff flooding caused by remnants of Hurricane Ivan.
2004 September 24: Letter to City of Pittsburgh General Services Director Dale Perrett from Carnegie Science Center Planetarium Director John G. Radzilowicz, regarding Friends of the Zeiss inquiry about condition of historic Buhl Planetarium equipment and artifacts, stored in Science Center warehouse, which may have received some flooding during the heavy rains of 2004 September 17 and the flood crest of the Ohio River, at 31 feet, at approximately 5:00 p.m. (EDST) on 2004 September 18.
2004 September 20: Letter to Pittsburgh City Councilman Bill Peduto from Friends of the Zeiss Project Director Glenn A. Walsh asking for an investigation regarding possible damage to historic Buhl Planetarium equipment and artifacts, stored in The Carnegie Science Center warehouse, due to rain runoff flooding caused by remnants of Hurricane Ivan.
2004 June 3: Letter to Pittsburgh Tribune-Review City Beat Reporter Tony LaRussa from Friends of the Zeiss Project Director Glenn A. Walsh requesting advance publicity for Friends of the Zeiss/Duquesne Incline special public observing session of rare Transit of the Planet Venus across image of the Sun on 2004 June 8.
2004 June 3: Letter to Pittsburgh Post-Gazette Science Editor Byron Spice from Friends of the Zeiss Project Director Glenn A. Walsh requesting advance publicity for Friends of the Zeiss/Duquesne Incline special public observing session of rare Transit of the Planet Venus across image of the Sun on 2004 June 8.
2004 June 1: Letter to Carnegie Science Center Director Joanna E. Haas from Friends of the Zeiss Project Director Glenn A. Walsh suggesting a collaboration among The Carnegie Science Center, Friends of the Zeiss, and The Duquesne Incline for a public program during the Transit of the Planet Venus on 2004 June 8. No reply was received.