Thanks, Michael,
I think that it is. I have been away from XSLT for a couple of years and 
did not see that very easy solution.
Regards,
Mark

On 9/12/2019 2:59 PM, Michael Kay mike@xxxxxxxxxxxx wrote:
> It looks as if this can be done simply by changing the match attribute to
>
> match="Period[@domain='c']//Stamp"
>
> Or have I misunderstood?
>
> Michael Kay
> Saxonica
>
>> ...
>> <Period/>
>>
>>
>
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