Keuffel & Esser display case?

looks more like a map drawer.?ÿ Not enough info to tell

It looks like something designed to press a large flat thing against the glass.?ÿ But what kind of thing, I don't know.

An old, old, old blueprint box?

I used one like that in junior high school to take outside and have the sun produce a print. (1957?)

An old, old, old blueprint box?

I used one like that in junior high school to take outside and have the sun produce a print. (1957?)

My Dad described that process.

How did you expose it to ammonia?

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Looks cool.?ÿ What are the dimensions of the thing??ÿ And, can you take an Oblique photo?

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It appears to be a Print Frame.?ÿ?ÿ Here is a link to a great site, and he has the catalogs for different equipment including K and E: https://www.compleatsurveyor.com/eReferenceCatalogs/eRefCats.html

I found a similar one on page 224 (238 of the pdf) in their 1913 catalog.?ÿ Not the same one, but you may be able to find the exact one by looking through older catalogs.

@dave-karoly an old surveyor, who retired about 15 years ago from this area, used to ammonia develop his blueline prints.?ÿ He placed them in approximately a 3 inch diameter x 36 inch glass tube, closed on one end and placing the open end over a bowl with ammonia.?ÿ If I recall it had an inner ring for the ammonia and glass went over the outer ring to contain the ammonia smell.?ÿ The glass tube always stayed over the ammonia when not in use to prevent the ammonia from evaporating.?ÿ?ÿ

He made me a print of one of his surveys one time and I don't recall it taking very much time.?ÿ Probably about 10 minutes.

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@joe-b I added some more photos as well as the demension and thank you for the information. I will check out the catalogs for the company.

@joe-b I redid the measurements after reading the catalog and the printing demension is actually 24X30. Thank you for this information again. The catalog does seem to describe exactly what it is. It even still has the cotton that the catalog describes as well.

@71340cuda?ÿ

Great, I'm glad I could help.?ÿ It looks like a really cool display piece.?ÿ I think it's impressive the glass is still intact (assuming it's the original glass.)?ÿ Maybe find an old map to display inside of it?

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@dave-karoly?ÿ

According to Wikipedia a blueprint was made using soluble salts of iron. The result being a blue background and white lines. The process that used ammonia makes what are called white prints having a white background and blue lines. Today most anything is called a blueprint.

The thing in the pictures appears to be something akin to a picture frame. The curved brass things tension the planks against the glass. Some do-it-yourself picture frames are made similarly.

@la-stevens That's exactly how I made my prints from 1965 to about 1975