The secret history of the first glass mask

The first glass masks were invented in 1874 by Joseph K. Purdy, who was also known as Josephine Purdy.

They were intended to protect people from the common cold and other respiratory diseases.

The mask was designed to resemble a glass plate or a glass bowl.

The first time that a glass mask was used to protect a person was in 1894 when a woman in New York City contracted a rare and deadly coronavirus.

The woman had been in the hospital for almost three weeks, and her condition deteriorated rapidly.

After several tests, her body was found to have high levels of coronaviruses in her lungs.

She had contracted multiple coronavirets.

A woman with the virus had died in a New York hospital in 1896.

As the epidemic grew, many hospitals had been overwhelmed with patients who needed a protective mask.

The Purdy masks were used for nearly a century and were designed to look like the real thing, but in the modern era they’ve become more sophisticated, especially the one designed by British inventor Peter Brimelow.

He created a mask that had an eye piece, mouthpiece, and mouthpiece covered with a flexible plastic sheet to provide a protective layer to the lungs.

The plastic sheet is thin and flexible and can be folded to form a protective dome that covers the mouth and eyes.

When people wear the Purdy mask, their eyes will become completely covered and their nose and mouth will be protected from the virus.

However, it has been claimed that it’s possible to develop the ability to mask the lungs with a piece of thin, flexible glass.

Glass has the potential to protect the lungs in a number of ways.

The glass can be thin enough to be applied with a thin, rubber-like material like a tissue paper, but flexible enough to bend, stretch, and move with the wind.

It’s a little like the way that a rubber glove will bend when you try to apply it with a rubber band.

Glass also can be applied to the inside of the nose to keep a person from breathing.

This is very useful for people with lung disease, who are very susceptible to airway obstruction.

Glass masks can also be used to mask other body parts.

They are designed to fit over the nose, mouth, and chin.

They can be worn over the upper eyelid or over the top of the mouth to protect your tongue and teeth from the viruses saliva.

Glass is not the only glass material used in the early days of medical research.

Other types of glass have been used to produce protective masks.

Some medical schools still use glass as part of their curricula, and medical school curricula are still based on this.

However the invention of the glass mask is credited with revolutionizing the field of medical masks.

In fact, a number new medical masks were created from this material in the late 19th century.

The earliest of these masks was invented in 1860 by an American doctor named William A. Brown.

Brown developed the first of these medical masks by combining two materials: glass and wool.

He also invented the first cotton respirator mask, which he used to clean patients’ throats and mouths during his operations in the 1860s.

Glass and wool have also been used as protective masks in many other fields of medical care.

One of the most famous examples of this is the mask of Elizabeth Taylor.

This famous nurse was a pioneer in the field when she invented the respirator for the first time.

She also developed a respirator made from the material that has been used for centuries in the U.S. today, the polyurethane mask.

This was the first non-glass mask to be made and is still used today.

Other medical masks have been created from glass.

In 1905, an American nurse named Eliza Riggs invented a respirators made from polyuretha and the polyester cloth.

Polyurethanes, which are made of a mixture of nylon and polyester, were originally developed for use in the military.

The U.K. military used the material in its helmets and armor during World War II.

The use of polyurethalene masks was also a popular choice for military personnel in World War I. The early use of glass masks also contributed to the development of many other medical masks in the United States and abroad.

For example, the American Society of Clinical Microbiology has used polyurethene masks in its research for nearly 100 years.

Glass was the material of choice in medical devices for nearly 150 years.

It was used in medical equipment and surgical instruments for almost two centuries, and it was the most commonly used material for surgical instruments during World Wars I and II.

By the 1930s, glass masks had become the most popular medical masks worldwide, with the use of almost 1,400 different types of masks.

Today, there are about 2,000 types of medical protective masks, and the average cost of a mask is about $300. The