Aircraft technical drawings

Conservation of a rare photomechanical print of technical drawings of the aircraft ANBO-IV.

This aircraft was a version of the first Lithuanian aircraft, designed by Antanas Gustaitis. The authentic drawings did not survive, thus these prints have a great value. The engineers in collaboration with Lithuanian Aviation Museum are working on the aircraft reconstruction model based on the collection technical drawings.

The prints are made on a very sensitive paper and the size of the drawings are quite challenging. Most of them were folded and the, after they tore, they were repaired using a pressure sensitive tape, which made the conservation even more difficult.

Lithuanian Museum of Aviation, document no. LAM GEK−5789/RD 1693.

A conservation project conducted by Vilnius University Library from 2017.


Photograhed by R. Malaiška and G. Bernotas.

Conservation by Ieva Rusteikaitė.


Note. Due to the fact that pictures were taken in different periods, there might be slight color differences in the photographs.



  • Dust
  • Tears
  • Big loss in the support
  • Residuals of the adhesives

Treatment applied

  • Dry cleaning
  • Removal of the adhesive
  • Flattening
  • Repair of the paper loss
  • Consolidation of the tears