Watch or Clock Key?

[99Brown]

Found this today, and I know it is a key to a clock or watch. What has me puzzled is the size of it. I thought maybe it was broken off, as the ones I have seen/found are usually bigger than this. But it is not broken.
No bigger than the quarter that is in the picture for reference. Did they make keys for watches? I thought clocks only.
I can understand why this was lost. Any ideas or comments? Thanks for looking and HH to all!!

99Brown

[PBK]

Looks like it could be an old alarm clock key. Check for threading inside.

[Monty]

Looks like an old roller skate key to me. If so, it's probably from the 50s. Monty

[Angelo]

Here's a bunch of them on ebay

[stefen]

It appears to be copper, so I don't think that it is a skate key...most were formed-stamped metal.

However, there were many wind-up toys (cars, trains, dolls, etc) of the early 20th century.

[99Brown]

Thanks for all the replies. It is threaded on the inside. So could be an alarm clock key. And yes, it seems to be made of copper. The area where I found it had a house on it, that is not longer there. The house was tore down in 1953. Thanks and HH to all.

99Brown

[lordmarcovan]

Definite clock key. I'm more inclined to say a mantel clock than an alarm clock, though. Most alarm clocks have the key attached. My father has an old clock on his mantelpiece that uses a key just like that.

[jeff of pa]

Reminds me of a Winder key, like the ones on my old Tin Toys,
in the early 60's.

[crisco1]

I'm thinking music box- they had really large ones in the early 1900's and I've seen wind up keys like that on em'