Boots "Ticky" Flash Gun
Boots is a UK chemist chain that also used to sell low-end photo kit, some of it as their own brand.
This ancient Boots-branded bulb flash gun has surfaced on Ebay. He wants £2.99 (+ £3.60 post), but the joke here is that it still has the original Boots price label on it showing £1.69 ! I would date this as early 1970s, and even allowing for inflation that was dirt cheap. I expect it was a loss leader and they made money on the bulbs.
Tiny though it is, it packs a decent punch (or should I say kick?) with a GN of 32m. Whether you can get flash bulbs or its weird battery nowadays is another matter. Interestingly it says set the camera sync to "X" and use 1/30 sec, but I thought you were supposed to use the "M" sync setting for bulb flash on cameras of that era. I suppose 1/30 sec was long enough to bracket anything.
Vintage Boots Ticky 77 Camera Flash Gun Unit | eBay