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What materials the parts are made of?
Would you post some pictures?
Modern art horisons (like those sold by Celestaire) are made
of plastic, and they are supposed to be used with water or oil.

Old ones were made of iron, and used with mercury. But the triangular
prizm shape is similar.
A mercury art horizon must have an iron bottle.
I've seen one in excellent condition sold on e-bay for almost $1000
few years ago.

Alex.

On Thu, 25 Oct 2012, Bruce J. Pennino wrote:

>
> Hello:
>
> A friend found in his barn a triangular hood AH that looks like the small 
ones sold today.  He is OCS USNR officer from the 1950s.  The basin is 
nominally
> 3"x6 "x 1/2" deep.  The basin has a corner spout for returning fluid back 
into a torpedo shaped jug. The jug is  securely screwed to a fine wood box. 
The basin spout has a hole in the top with an internal thread which must 
match the very top of another piece which must have attached to the funnel. 
The AH has a funnel which screws onto the jug.
>
> I can't find any reference on this AH.I'm specifically looking for 
information on the small tip of the "torpedo" which is missing. This tip of 
the "torpedo" must have threads that go into the spout (I guess).
>
> I've found one piece of information that indicates these AHs were sold into 
1960s.  Anyone have any old K & E (maybe Gurley) catalogs? USN training 
manuals?
> Would like to see how it looks.
>
> We hope to use this AH; maybe have a new tip machined.
> Thanks
> Bruce
>
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