SHFNI Rotractrule
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Join Date: Nov 2002
Location: UK
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SHFNI Rotractrule
My SHFNI Rotractrule is becoming somewhat dog-eared. Even fablon can't save it. It's a great piece of kit, fits in a flying suit.....
Does anyone have one in their memorabilia collection they'd be willing to trade or let go of? Thanks.
Does anyone have one in their memorabilia collection they'd be willing to trade or let go of? Thanks.
Fascinating device. When I looked it up on Google, my quest was self-referential, back to this post!
Some questions:
Where does the name come from?
What was the graph used for?
Who produced 1:20,000 maps? I would have expected 1:25,000.
PS I know what SHFNI means. It's the other bit!
Some questions:
Where does the name come from?
What was the graph used for?
Who produced 1:20,000 maps? I would have expected 1:25,000.
PS I know what SHFNI means. It's the other bit!
Last edited by India Four Two; 30th Mar 2022 at 22:41.
