Three other similar clocks are recorded: at the Schwenningen, Hellmut-Kienzle-Museum and the Württembergisches Landesmuseum, Stuttgart (Maurice II (op cit) figs. 324 and 325), and one by Johann Oth Halleicher in the John Gershom Parkington Collection (Capt. R. Meyrick, The John Gershom Parkington Memorial Collection of Time Measurement Instruments, Ipswich, 1979, pp. 16/17, No. 19TC.