Here's one that must have sat on a shelf for a good number of years!

I very, very dimly remember seeing a couple of these in use in a hotel when I was very young, however certainly don't recall ever seeing one since.

Candle lamps with the twisted bulb shape (CF prefix) have always been a bit of a rarity, though they've never actually been hard to find.  I've not however seen recently any with such a large envelope, this being a good 10mm or so wider than most candle lamps I've come across.  I don't know whether the larger size was more common in the past, or whether these were just intended as decorative lamps which were deliberately somewhat larger.

Another reason I tend to think that they may have had cosmetic appearance high on the agenda is the pink/light red external powder coating which has been applied to the tip of the lamp.  This is a sufficiently thin coating and being quite some distance from the filament, does not have all that much effect on the actual light given off by the lamp aside from if you're looking directly at it from that end.  The overall colour temperature of the light and the amount of light given off is pretty much exactly as you would expect from a 40W incandescent lamp.

Another clue to its age I think is the styling of the packaging, I'm tending to think 1970s at the moment.  If anyone can confirm that I'd be really glad to hear from you.

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