Regarding the "shamrock" cane that Michelle referred to, I am assuming it's the one with three red lobes in the centre of the cane. This is certainly not like the Baccarat 'shamrock" cane.
Rather than being an attenpt at a 'shamrock', I think it is simply one of a regular design using three rods that can often be found in Strathearn weights and also the earlier Vasart Ltd [1956-1964] and Ysart Brothers (Vasart) [1946-1956] which were the forerunners of the Strahearn company.
Three-rod, and also three-cane and four-cane groups, were a regular feature in weights from these companies.
Strathearn closepacks are a wonderful source for anyone who wants to make a collection of attractive weights with lots of quite intricate canes, and which can also include canes from the earlier years. All the more pleasing as a general study because such weights are quite plentiful and can be bought without requiring a mortgage to secure them.
See Richard More's web pages
for a very full study of Strathearn weights.