DCR is soliciting proposals from qualified conservators for the assessment and preservation of various cultural and historic materials including grave stones, sculpture,stone and metals, paintings, archival records, photographs, film and architectural drawings source link: https://www.ebidsourcing.com/displayPublicSolInqOpenSolCatList.do?browseType=BYSUBCAT&doValidateToken=false&subCategoryId=110133&categoryName=Facility+Maintenance+and+Repair+-+Related+Equipment%2C+Services+%26+Supplies&menu_id=2.3.1.1.1.1&subCategoryName=SERVICES-All+Other+Not+Shown+or+Combinations