only if its a valve off a matchbox car...

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did I tell you that I won a trophy?

Right, can't tell the scale of it!

Now that you mention it yeah it's really small

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Lillee - 1969 Morris Mini K

Actwelly...the magnet would be similar OD to the collet end of a valve...so the item could be part of a valve (but unlikely!)

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"Show me the Mini!"

850 valves would be pretty small? (assuming you have an 850 with a magic wand)

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Lillee - 1969 Morris Mini K

too small for the end of a mini valve, i`d say it`s a rivet out of first motion saft bearing cage,
just a guess tho

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

thanks for the comments. the size is 3.25mm a few more picks ..

As mentioned earlier I'd guess that is the end of one of the links in the timing chain.

Brad

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During the day I work on English designed cars & on my own time I work on English designed cars....

Could even be a foreign body that's found its way in, maybe in dirty oil funnel,or while engines was apart a some time.
Does look a lot like rivot head but.

No, not that one, that is the 1st motion shaft pilot bearing.
This one
http://www.minispares.com/product/Classic/Gearbox/Replacement_Parts/Bearings/2A3709.aspx?150701&ReturnUrl=/product/Classic/Gearbox/Replacement_Parts/Bearings/ADU7619.aspx|Back%20to

Or even the diff bearing
http://www.minispares.com/product/Class ... o%20search

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Yeah that's probably what it is

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Lillee - 1969 Morris Mini K

I'd agree with that.