[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Metzger Building, Third Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A010	[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Metzger Building, Third Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A010	[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Gilbert Building, First Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A011
[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Gilbert Building, First Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A011	[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Gilbert Building, First Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A011	[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Gilbert Building, First Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A011
[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Gilbert Building, First Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A011	[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Gilbert Building, First Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A011	[Survey Drawings of Buildings Demolished for the Pennsylvania Convention Center Expansion] Gilbert Building, First Floor Plan (VITETTA, 6/15/2007) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: VTA6199-A011
[The Biography of a Block: Phase I-III Archeological Testing and Data Recovery, Pennsylvania Convention Center Expansion, Philadelphia Pennsylvania] (John Milner Associates, 2008) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia.	[Pennsylvania Convention Center Expansion- Historic Recordation, Building 4, Odd Fellows Building, Cornerstone Photos] Cornerstone (2008) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: 233-DP-014-003	[Pennsylvania Convention Center Expansion- Historic Recordation, Building 4, Odd Fellows Building, Cornerstone Photos] Cornerstone (2008) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: 233-DP-014-002
[Pennsylvania Convention Center Expansion- Historic Recordation, Building 4, Odd Fellows Building, Cornerstone Photos] Cornerstone (2008) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: 233-DP-014-004	[Pennsylvania Convention Center Expansion- Historic Recordation, Building 4, Odd Fellows Building, Cornerstone Photos] Cornerstone (2008) Pennsylvania Convention Center Collection, Athenaeum of Philadelphia. Local ID #: 233-DP-014-005

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