Two-dwell mechanism‍

‍‍Mech­a­nism is stored in the Poly­tech­nic Museum (Moscow, Rus­sia); fund repos­i­tory, PM № 19463.

‍‍Mech­a­nism is stored in the Musée des arts et métiers du Con­ser­va­toire national des arts et métiers (Paris, France); CNAM № 11472-0002.

‍‍Mech­a­nism is stored in the Museum of the His­tory of Physics and Math­e­mat­ics of Saint Peters­burg State Uni­ver­sity (Peter­hof, Rus­sia).

‍‍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. 40. (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. 224–225. (Russ­ian)

‍‍Geo­met­ric 3D model by Math­e­mat­i­cal Etudes.