£208 and 6 serious bidders.
It may be that some people do not realise it is a Strathearn - because of what they are used to and the rarity of these designs - and as you will see from the ebay listings, they are often unattibuted,
There are some similarities to Ysarts.
But I think they are superb weights with some wonderful canes, a view clearly shared by many collectors, and because of the rarity of them, they will always sell for a premium. They have been over the £100 mark for some years now.
I don't think that many of the SP100/101/102 weights do have signature/date canes - in the same way that the proportion of signed standard Strathearn spoke designs is low. I do not think there is any correlation between flat bases and signatures.