Sparklets Collectors Guide code: SCG/BUB-21
Bulb: Size B, unpainted
Packaging: Cardboard box containing 12 bulbs.
Box design: 12 B capsules sold by Sparklets Ltd London
Fits: “B” Syphons
Produced: I am guessing the date as c1920
Notes: Thanks for Dave Smithson in New Zealand for providing the photos.