Alvin Proportional Dividers
One of my father's drafting instruments, used the replicate a circle or line at a different proportion.
1,512
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3
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Uploaded on October 21, 2017
Taken on October 21, 2017
Alvin Proportional Dividers
One of my father's drafting instruments, used the replicate a circle or line at a different proportion.
1,512
views
3
faves
1
comment
Uploaded on October 21, 2017
Taken on October 21, 2017