 By 1972, her wallpapers reportedly contained around 800 designs in eighty different colours, while by the mid-1970s she monopolised the quality end of the Australian market and was exporting worldwide.Broadhurst's library of wooden silk-printing screens and film positives was sold to Wilson Fabrics and Wallcoverings in 1978, just one year after her death.However, the decline of wallpaper as a popular form of home furnishing in the 1980s saw the collection languish, and it was later re-sold to Signature Prints Pty Ltd. Signature Prints in turn was purchased by a conglomerate led by current CEO David Lennie in 1989.