On 07/03/2018 23:29, Mike Horvath wrote:
> On 3/7/2018 7:21 AM, Stephen wrote:
>> Now, I would be surprised if people in the UK did not know that. I 
>> guess I was about 15 or 16 when I was taught it at school.
>> But as a rule of thumb that an inch is about the length of your 
>> thumb's distal phalanx. Is good enough for children as they more 
>> resemble the size of an adult of bygone years.
>>
>> BTW has anyone heard or seen a ruler where feet are divided into tenths?
>> Giving the impression that there are 10 "X inches" to a foot.
>> I saw one once about 30 years ago.
>>
>>
> 
> I have a triangular drafting ruler that is like that.
> 
> 


Hmm I got a set of drafting scale rulers, somewhere in storage. I must 
have a look at them. I think the one I saw was a folding yardstick. My 
great uncle gave them to me when I was at school.


-- 

Regards
     Stephen

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