Balance‍

‍‍Mech­a­nism is stored in the Poly­tech­nic Museum (Moscow, Rus­sia); fund repos­i­tory, PM № 19468.

‍‍Rough wooden model with P. L. Tcheby­shev’s marks is stored in the Museum of the His­tory of Saint Peters­burg State Uni­ver­sity (Rus­sia).

‍‍The orig­i­nals of the archive pho­tos are stored in the Musée des arts et métiers du Con­ser­va­toire national des arts et métiers (Paris, France); CNAM № 17199-0000.

‍‍I. I. Arto­bolevsky, N. I. Lev­it­sky. Tcheby­shev's Mech­a­nisms / In: P. L. Tcheby­shev’s Sci­en­tific Her­itage. Iss. 2. The­ory of mech­a­nisms. — Moscow-Leningrad: AS USSR. 1945. P. 70–71. (Russ­ian)

‍‍I. I. Arto­bolevsky, N. I. Lev­it­sky. Mod­els of mech­a­nisms of P. L. Tcheby­shev / In: The com­plete works of P. L. Tcheby­shev. Vol. IV. The­ory of mech­a­nisms. — Moscow-Leningrad: AS USSR. 1948. P. 232–233. (Russ­ian)