Composite volume: three books bound together.
Binding: quarter binding. Materials: calfskin, paper. Leather decoration technique on the spine:
monochromatic dyeing. Tooling: a tooled design (by the same tool) on the spine, a double fillet along the
spine. Paper decoration technique on the cover: sprinkling (pseudo-marbling).
Ownership mark: Towarzystwo przyjaciół nauk w Wilnie [bookplate].
Microchemical and instrumental analysis : pH – 4,8; Ferric chloride test: positive; Vanillin test: negative;
Nitrous acid test: negative; Rhodanine test: positive; Tannin classes: hydrolyzable tannins; ATR-FTIR
spectroscopy: gallotannins.