It's a version of Caithness "Miniature Candle" CT-643 designed by Allan Scott and issued in 1988 in the "millefiori miniatures" series. Original issue price, as per the Charlton Guide. second edition, was £30.00. But the design as issued was faceted - 5 side windows and a top one.
Maybe this unfaceted one was a "trial" piece, or more likely, a second (it has one "laid over" cane and another cane seems smaller than the rest) but possibly not marked as such and not originally sold through the shop with other seconds.