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PostPosted: Mon Mar 12, 2018 12:44 am 
Retro Guru
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Joined: Tue Jul 07, 2015 10:52 am
Posts: 262
Location: Colchester, Essex
Update of the numbering with additional numbers and a number of frames coming up with sale dates bringing some more clarity. Charts will be updated again as and when further good dates come to light.

Graphs and Excel database available on this link
https://drive.google.com/drive/u/0/fold ... TNKZkN4TmM


Last edited by dwscrimshaw on Thu Apr 19, 2018 8:38 am, edited 1 time in total.

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PostPosted: Thu Mar 15, 2018 1:06 pm 
r.B.o.T.M. & P.o.T.M. Winner
r.B.o.T.M. & P.o.T.M. Winner
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Joined: Thu Jan 30, 2014 11:56 pm
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Location: Cumbria land of beauty
Many Thanks for all your hard work on this Dave it has been a pleasure watching this thread evolve.

I have another frame number for you (if you haven't got it already) from my 1978 professional 015232

Clive


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 Post subject: Re:
PostPosted: Thu Mar 15, 2018 3:03 pm 
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Thanks not got this one, any change of a picture to add to the database?


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 Post subject: Re: Re:
PostPosted: Fri Mar 16, 2018 12:01 am 
r.B.o.T.M. & P.o.T.M. Winner
r.B.o.T.M. & P.o.T.M. Winner
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Joined: Thu Jan 30, 2014 11:56 pm
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Location: Cumbria land of beauty
dwscrimshaw wrote:
Thanks not got this one, any change of a picture to add to the database?


I've started a build thread for it here
http://www.retrobike.co.uk/forum/viewto ... p;t=381437


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PostPosted: Sat Mar 31, 2018 11:19 am 
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Joined: Mon Sep 19, 2016 2:18 pm
Posts: 103
Location: Warwick
Dave,

Some excellent work and it seems to me that the analysis is now at the point where there is a consistenancy of data across the timeline of production. I mean that taking a high level view the data points of blocks of serial numbers fit the annual periods better, thanks again,

David


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PostPosted: Sat Mar 31, 2018 3:28 pm 
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Joined: Tue Jul 07, 2015 10:52 am
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Location: Colchester, Essex
Thanks, yes so.e key date helped improve things. Very few good reliable dates, some key ones help a lot.


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PostPosted: Thu Apr 19, 2018 7:54 am 
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Location: Colchester, Essex
Few corrections and new charts
Attachment:
Holdsworth Frame Numbers.PNG
Holdsworth Frame Numbers.PNG [ 55.27 KiB | Viewed 164 times ]

Attachment:
Holdsworth Frame Numbering.PNG
Holdsworth Frame Numbering.PNG [ 52.64 KiB | Viewed 164 times ]

Attachment:
Holdsworth 5 & 6 Digit Frame Number Grouping.PNG
Holdsworth 5 & 6 Digit Frame Number Grouping.PNG [ 58.29 KiB | Viewed 164 times ]

Attachment:
Holdsworth 5 Digit Frame Number Progression.PNG
Holdsworth 5 Digit Frame Number Progression.PNG [ 95.76 KiB | Viewed 164 times ]

Attachment:
Holdsworth 6 Digit Frame Number Progression.PNG
Holdsworth 6 Digit Frame Number Progression.PNG [ 91.51 KiB | Viewed 164 times ]


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PostPosted: Thu Apr 19, 2018 8:39 am 
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Joined: Tue Jul 07, 2015 10:52 am
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Location: Colchester, Essex
Old Chart Removed and link to Google Cloud added.

https://drive.google.com/drive/u/0/fold ... TNKZkN4TmM


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