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I'm trying to restore an Ebbco sextant. What I need is a set of shades
and the spring retainer for the horizon mirror or an entire horizon
mirror assembly. The model I have is the later one with the larger
mirrors and three index-mirror shades.

Ebbco doesn't have a web site and the letter I wrote them came back
with a laconic note "moved." (Be nice if it had said where).

FWIW : I used an Ebbco for years and it always stayed true to the DR
and always got me there.

Hewitt

On 9/23/08, Bill  wrote:
>
>  George wrote
>
>
>  > That's interesting, and rather a surprise to find such extreme
>  > bad-behaviour. Was the index error similarly unstable, or did the index
>  > error stay put while the calibration changed? What were the conditions of
>  > the test? Had the instrument been given any time to stabilise, in
>  > temperature? Presumably, the instrument had been checked-over to ensure that
>  > no mirrors or brackets were at all wobbly
>
>
> If you have not checked out David Burch's field tests of plastic sextants,
>  Frank's figures might seem a bit high, but they are pretty much in line with
>  Burch's findings.
>
>
>  Bill B.
>
>
>
>  >
>

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