Historic Congressional Cemetery:
Misting Technique washes marble plaque - P. Crowley
Historic Congressional Cemetery:
NCPTT 1- J.Church
Historic Congressional Cemetery:
NCPTT 2 -J. Church
Historic Congressional Cemetery:
NCPTT 3 - J. Church
Historic Congressional Cemetery:
NCPTT 4 - J. Church
Historic Congressional Cemetery:
NCPTT 5 - J. Church
Historic Congressional Cemetery:
NCPTT 6 - J. Church
Historic Congressional Cemetery:
21st_century_technology
Historic Congressional Cemetery:
Cenotaph Cleaning with inert glass bead blast-Moss Rudley
Historic Congressional Cemetery:
Cenotaph Cleaning w glass bead-Moss Rudley
Historic Congressional Cemetery:
Misting technology applied to Macomb - M. Rudley (2)
Historic Congressional Cemetery:
Misting technology applied to Macomb - M. Rudley
Historic Congressional Cemetery:
Modern support structure surrounds old structure at Macomb Vault - P. Crowley
Historic Congressional Cemetery:
Misting Technique washes marble plaque - P. Crowley (2)