Top of page

Category: Preservation

Two images side by side, showing the completed models after treatment

(re)Building Rudolph: What Goes into a Monumental Loan

Posted by: Chloe Genter

Two large architectural models by Paul Rudolph were selected as part of a large loan that will be on display September 2024. The models were in extremely poor condition, broken, water- damaged, and covered in a thick layer of dust and debris. A team of five5 technicians and the objects conservator worked to get the models back into stable and displayable condition.

One person crouching to record information at the base of the stacks.

Reflections of a Librarian-in-Residence in Preservation

Posted by: Bobbi Hinton

The following is a guest post by Lauren Quackenbush, Librarian-in-Residence, Preservation Division. The Librarian-in-Residence (LIR) program was created in 2018 for newly graduated librarian students to gain invaluable experience at the Library of Congress. LIRs are assigned throughout the Library, this year’s 2023 cohort consisted of 5 recent graduates. As the LIR in Preservation, I …

Upcoming: Charting New Discoveries of the Manuscript Map of the Dagua River Region

Posted by: Amelia Parks

The Manuscript Map of the Dagua River Region, created in 1764, depicts a remote gold mining frontier in today’s Colombia. Art historian Juliet Wiersema and preservation scientist Meghan Hill will share results from their collaborative analysis which unearthed stories about African resilience, resistance, adaptation, entrepreneurship, and survival within the Spanish empire. A scientific examination of this map further draws back the curtain on how this large watercolor map was assembled using pigments and paper from across the empire.

Three women and one man stand in front of a table of FEMA materials.

The Conservation Division Travels to Vermont

Posted by: Lily Tyndall

Read along to see how four members of the Conservation Division at the Library of Congress deployed to Vermont attached to a FEMA response to the massive summer flooding in the state. These four subject matter experts received and conducted on-the-ground training with FEMA and performed outreach and demonstrations to the people of Vermont.

A girl with dark brown hair and glasses smiles.

The Art of Color Analysis: Using Analytical Chemistry in Pigment Research

Posted by: Bobbi Hinton

Preservation Science Intern Jessica McKenzie breaks down some applications of analytical chemistry in the Library of Congress, where she uses Fourier Transform Infrared Spectroscopy to expand the Preservation Research and Testing Division’s database for pigment analysis. She then demonstrates how she has assisted in applying her work to collection items.

Team members stand in a lab space reviewing a piece of parchment skin together.

Of Inks and Skins, and the Stories They Tell

Posted by: Bobbi Hinton

The Inks and Skins collaboration studies material aspects of medieval Gaelic manuscripts, fusing scientific analysis with codicology and linguistic study. These manuscripts contain a wealth of tales and poetry, historical, legal, and scientific writing from medieval Ireland. The manuscripts themselves, their creation, and their survival each have their own tales to tell.