The 'antique Whitefriars' myth (meaning pre-1930) was blown apart in the early 1990s, with the paperweights carrying an '1848' date being correctly attributed to Arculus or Walsh Walsh, and dating to the 1920s - 1930s. But a few dealers / sellers / auctioneers still use this term in 2010.
I suspect your weight is a Whitefriars weight - those heart canes look very like Whitefriars heart canes - but dating to the late 1940s / early 1950s. Whitefriars made very few paperweights until the 'Triplex' in 1951 and 'EIIR' in 1953, but they did make some. I had a paperweight inkwell with similar but different coloured heart canes, alongside canes that matched those in the 'EIIR' weights, and alongside these were some Walsh Walsh style '7/6' canes! I guess that came about because Walsh Walsh and Whitefriars collaborated on certain things in the late 1940s, and when Walsh Walsh closed in 1950, some workers probably moved to Whitefriars.
So I vote for yours being a Whitefriars weight from around 1950, with later facetting to remove damage.