🚀 go-pugleaf

Terry Flynn wrote:

> 
> 
> 
> "mark_newton" <mark_newton@optusnet.com.au> wrote in message
> news:4282EA40.4060109@optusnet.com.au...
>> Hunslet wrote:
>>
>>  > This particular photograph shows 3801 to be quite a dark gray, whilst
>>  >  other black and white photos suggest that the gray is considerably
>>  > lighter.
>>
>> Streamlined 38 nearing completion at Clyde Engineering:
>>
>>
>
http://images2.fotopic.net/?iid=y86vdw&outx=599&quality=70&original=1&noresize=1&nostamp=1
>>
>> This photographic print from my collection, while damaged, shows a light
>> shade of grey, as evidenced by the highly visible dirty hand marks
>> around the nose shroud, and along the edge of the valance.
>>
> 
> There is no evidence this is the final coat of paint expert. Probably just
> undercoat.
> 
>> Well known photo of two 38s in grey at Eveleigh:
>>
>>
>
http://www.records.nsw.gov.au/BOSImages/Series/0017/420/Items/0222/484/17420_a014_a014000220.jpg
>>
> 
> 
>> Again, the grey is quite light on both locos. Three distinct variations
>> in tone can be seen, all of which appear lighter than the gunmetal wagon
>> colour.
>>
> 
> Again a locomotive before being finally painted. The black and white print
> is useless to determine what shade of grey was used.
> 
>> For comparison, a photo of an LHG in gunmetal lacquer:
>>
> 
> Irrelevant, as black and white prints show the same grey in a large range
> of grey tones. The colour print on my web page of a steel S wagon is a
> different grey, showing the BW print to be useless for colour matching.
> 
>>
>
http://images1.fotopic.net/?iid=y86vdv&outx=578&quality=70&original=1&noresize=1&nostamp=1
>>
>> There is a well documented technique used by aviation historians to
>> determine the approximate colours of WW1 aircraft by comparing grey
>> scale contrast. Perhaps this method could help identify the shade of
>> grey used on the 38s?
>>
>>
>>
>>
> 
> How do they calibrate the grey scale? What reference standard do they use?
> Until you apply a proven technique to suitable prints, your examples tell
> us nothing about the colour used in service.

I thought that only *you* knew the colour that the 38's used in service!! As
you constantly tell us that this is the case.  Some of your paint chips
should have the grey in them.