Cf. two similar bottles sold in our Geneva Rooms, 10 November 1986, lot 146 which appear to form the pair to this bottle and the following lot. The Johanneum mark N=291W clearly contained a large number of pieces with celadon or turquoise grounds. The pair already mentioned, three square sake bottles, sold in these Rooms, 28 March and 17 October 1977, lots 38 and 64 respectively, an example at Lustheim, see Rainer Ruckert, op. cit., fig. 417 and a single bottle sold in these Rooms 17 October 1977, lot 65 all bear this inventory mark