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Our holdings include hundreds of glass and film negatives/transparencies that we've scanned ourselves; in addition, many other photos on this site were extracted from reference images (high-resolution tiffs) in the Library of Congress research archive. (To query the database click here.) They are adjusted, restored and reworked by your webmaster in accordance with his aesthetic sensibilities before being downsized and turned into the jpegs you see here. All of these images (including "derivative works") are protected by copyright laws of the United States and other jurisdictions and may not be sold, reproduced or otherwise used for commercial purposes without permission.

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[REV 25-NOV-2014]

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Parezo Electric: 1923

Parezo Electric: 1923

Washington, D.C., circa 1923. "Geo. W. Parezo electric shop, interior." Our fourth glimpse at the Parezo electrical supply store on Ninth Street. View full size.

On Shorpy:
Today's Top 5

What is it?

I'm not sure if I'm answering my own question here: I think the device (black machine just to the left of the Eden washing machine) is an early blood pressure monitoring mechanism. I found an article re: "the wave writer", invented in 1847 by German physiologist Carl Friedrich Wilhem Ludwig. Here's the link to the article, which contains a nice drawing of the object. It looks a little like a more modern version of the machine in the article. Anyone else care to comment?

Resistance Dimmers

Another benefit of resistance dimmers is that they worked just as well on DC as on AC.

Autotransformer and Thyratron (or Thyristor) dimmers only work with AC.

Edison base

Note the plug at the end of the vacuum cleaner cord screws into a lamp socket. Although the type of outlets we know today existed before 1923, it would be about another decade before they became common enough for appliances to be sold fitted with plugs that were bladed rather than threaded.

Dim Bulb

The Dim-A-Lite was undoubted a rheostat,
inefficient and heating itself internally.
The good news?
It wouldn't create noise in nearby electronic equipment.
You DID have a lot of electronic equipment, no?

Cornucopia of Coolness!

Everywhere I look there is something interesting! Are those Statue of Liberty fixtures on the railing posts at the bottom of the stairs? I want those!

On the cutting edge.

This was definitely the shop of a technology buff. Today he would have a dual CPU with 6 cores each and plenty of RAM to boot. I would like to have worked in this shop.


That leftside cabinet just full of radio parts! And near the radiator, what looks to be a modern rotary spark-gap transmitter. Just the thing to show the local Ham!

"On the line at nine"

This ad for the Eden washing machine from April 1923 shows a slightly different model than the one in the photo. My grandmother in Toronto had a similar looking machine in her basement, and the area was definitely off limits to us as kids.

Fire up the Time Machine

Let me at those model trains !

SHORPY HISTORICAL PHOTO ARCHIVE | History in HD is a vintage photo archive featuring thousands of high-definition images from the 1850s to 1960s. (Available as fine-art prints from the Shorpy Archive.) The site is named after Shorpy Higginbotham, a teenage coal miner who lived 100 years ago.

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