Cf. a teacup and saucer from the same service sold in these Rooms, 2 February 1976, lot 8; the teacup and saucer bearing a wall plaque inscribed Anno 1740 within the decoration was sold in these Rooms, 4 July 1983, lot 143 and three examples signed Hauer f sold Christie's Geneva, 8 May 1989, lots 101 and 102