Repositories: RNB. Provenance: unknown. Notes: on a half-torn label on the front board and on p. 3: 50, on p. 3 a stamped upper-case V, a pencilled a, a h in green. On the back brown flyleaf a note pencilled about arithmetic equations. Inside back board: 4V. Condition: title page missing. Soiled and worn, a plate with a photography loose between pp. 72/73.