Tumbler with torch and garland

Can anyone help me identify these glasses. I purchased them over 40 years ago. They are crystal, with etched torches and garlands around the top. They're about 4 inches tall. I was told they were from around 1915? Curious if that is true. Thanks all.

 

Your images were on your media page, so a copied them here. Next time please attach them to your thread. TY

 

They are perhaps a little earlier, most of these types of glasses are pre WW1 but the popular patterns, such as Lady Hamilton, continued. They are machine etched, and if you search for 'Pall Mall Glass' you should find some details about this type of glass, how they were processed etc.

 

Uh... Machine etched....not really. School Time

Etched glass is produced by acid etching into the surface of the glass. Almost all etched glass is produced by covering the surface of the glass with a "resist", a waxy stuff that acid won't attack. Here's were it gets tricky. When most glass is etched, (with a major exception) its surface is covered with a resist that has been prepared by being rubbed into an "Etching plate" a steel plate with a design engraved into it. (usually photo-engraved). The entire surface is inspected for gaps and covered with more resist, inside and out. Then the glass is immersed in acid (generally hydrafloric acid) The acid eats the glass, but not the resist. Once done, minutes or hours, I don't know, the glass is removed from the acid and cleaned with hot water which melts the wax, revealing the design.

The design above is somewhat different. It's called Needle Etching, The glass is covered with resist, totally covered. The glass (tumbler in this case is placed on a machine which with a needle draws the design on the tumbler through the resist. The acid does the same job, the wax is removed and the tumbler is finished.

The Needle etching process was developed before the photo-engraved process. Prior to this time etching plates were not used, the designs were hand drawn with needles, through the resist, directly on EACH piece, before the acid etching, adding much cost to the product.

School's out.

 

Thanks for taking the time to explain for the OP, I had just given the keywords so they could go and find out for themselves. I do know how they were produced - and the process is mechanical (the creation of the pattern on the glass is a machine process - in the same way you would call Wedgwood's engine turning a mechanical process - as opposed to manual (being hand etched). Hence calling it a machine etch, which is correct!

 

I didn't mean to infer that Machine Etch was incorrect, but to distinguish between Hand Etching, Needle etching, and Machine etching where the design is eroded into the glass by Machine, as Machine Cut distinguished from Hand Cut. I've not been exposed to the term Machine Etching relating to acid etching, my loss. Yes, Needle Etching is done by Machine.

 

You can also search pantograph, although it's less commonly used.