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pipopak
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Just to stir the subject of nailholes again, look at this pic:

http://photogrammar.research.yale.edu/photos/service/pnp/fsa/8b26000/8b26900/8b26941v.jpg

and note that the nails cracked the wood, so they are actually not holes but cracks, each and every one of them.
Jose (running for cover).

Tramcar Trev
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Are they cracks or are they rust staining that runs along the grain from water rusting the nails?
Cant get close enough to see, but rust stains is what I suspect...

Si.
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" NAILHOLES !!!!! " ... :f::f::f::f::f:


Attachment: 8b26941v.jpg (Downloaded 19 times)

pipopak
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I vote for cracks, because dry wood contracts and rusting nails expand. Jose.

Milocomarty
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I vote rust..:bg:

Si.
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:rah: VOTE PIPOPAK FOR PRESIDENT ! :rah:

pipopak
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VOTE PIPOPAK FOR PRESIDENT !

.... aren't there enough nutcases in the race already?. Jose.

Salada
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So one more shouldn't make much difference !!

With my apologies to Jose,      Regards,  Michael

Salada
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Jose : I vote for rust, as in the 2 photos below :





& a close-up of the same door :




Remember, 1 Rizla = 2 7/8" or 3" if previously squashed flat in tight jeans.

Photos by Salada in a cold & snowy NM.

Regards,    Michael


pipopak
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Michael: look at this:



there are horizontal cracks and some vertical rust streaks. Rust stained the wood mostly thru the open cracks. Your door, probably made from better wood, shows only nailholes and vertical rust streaks from the nailheads. Jose.

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Its pathetic that the post office was not even important enough to score a coat of whitewash.....

pipopak
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Its pathetic that the post office was not even important enough to score a coat of whitewash.....

(sigh)... things haven't improved a whole lot since then... Jose.

Salada
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Thanks for the close-up Jose, some splits are now visible. Strange how the rust has defied gravity to follow the splits & grain instead. A lowish rainfall area perhaps ?.

Regards,             Michael

Si.
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When you're elected Jose...

...I'm sure you'll have all the U.S Post Offices...

...as shinny & gleaming as Trump Tower.

& all the damn NAILHOLES !!!!! properly filled !

:moose:

Si.

P.S. More anxiety-dreams last night concerning NAILHOLES !!!!! in my 1:35 car-builds !

W C Greene
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Wow! I model wooden structures which are glued together and need no nails. The older ones are glued with "hide glue" and newer use epoxy & CA. Or maybe "liquid nails". That will pick the nitters.

Woodrow

Milocomarty
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The rust doesn't stain the wood through cracks but goes with the grain..it's rusty water searching it's way, and it wants down..that's why the streaks in the door go downwards..

Salada
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Hello Martin, that is also my thinking but Jose's photo seems to have sideways rust ?

Regards,          Michael

Si.
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Check Stephen Hawkins quantum-gravity research.

Black-holes ... NAILHOLES !!!!! ... mouse-holes.

Light NEVER escapes, but rust could be warping space-time around the NAILHOLES !!!!!

:moose:

Si.

Milocomarty
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Salada wrote:
Hello Martin, that is also my thinking but Jose's photo seems to have sideways rust ?

Regards,          Michael


I know but that it how it runs through the vains of the wood, allong the grain..

Steven B
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Keep in mind that when the photo was taken (1920s-30s) and is in southern Utah, in the desert. By the 20s the town was rapidly in decline, severe droughts had destroyed the farming economy. Just like the Dustbowl, the photos even remind me of Dorthea Lang Photos of the Dustbowl disaster. I wonder if it wasn't taken in a similar project by the government.

Also keep in mind that Post Offices at the time were often "contracted" affairs, not run by the USPS, but by the lowest bid, or by public appointment (usually payback for political contributions). Many POs around our area were in people's private homes!

So, when wondering why the place was in a state of disrepair, take into consideration the state of affairs in town. It is a great building with much character. I am so glad that you found it and shared it! Might have to model it, it begs. I like the snow on the ground, nice touch. :Salute:

mabloodhound
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In the close-up photo, those are clearly rust stains.  Look at the window header...same stains...running in the direction of the wood grain.

SJSlots
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Or... could it be a combination of stress fractures in the planks, rust from the nails and sediment/dirt added over quite a few gusty days. I also see what I would determine to be water staining on the planks.

NevadaBlue
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Just a bit more info, based on first hand experience with those old buildings. I've salvaged wood from similar buildings (that were to be torn down) and learned a lot about them. First, many of the buildings were built with the knowledge that many of them would be 'temporary'. Especially mining towns, were boom and bust type of places. Paint wasn't necessary really. LOTS of the buildings survived for a very long time because of the climate.
The siding is called Drop Siding. Here is a profile of the boards used. The curved area on the right in the photo is the top and the square notch on the left is the bottom. The top in the picture is the outside surface of course. The cracks in the old building's siding are because of the shape of the lower edge of the siding. It was nailed to the studs in the wall, just above that notch. As the boards weathered and shrank, the nail held the stuff below it and the crack was the result.



The material is very difficult to salvage in a lot of cases. The boards become fragile from weathering. Many times, the nails will be loose so it is easier to remove the siding. But, if the nails are tight, a lot of the lumber is lost to breakage. Yes, the black stains are rust, same as red rust but black due to the type of oxidation. Dry climate makes odd things happen.

Oh, rust... iron oxide, Red Rust is Fe2O3 to Black Rust is Fe3O4.

Last edited on Tue Feb 9th, 2016 10:36 pm by NevadaBlue

mabloodhound
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Good explanation Ken and good photos. And thanks for the chemistry reminder.


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