Hopf's wirepulls and more... Looking for Information!

[LevvyPoole]

1 hour ago, shiroaiko said:

This morning I decided to open the mesh bag for taking pictures. 

According to cvdv (Cees), this type of bags is from around 1965, but we don't know from when to when these bags were in use for Hopf packaging. 

The paper header was stapled through 3 parts. I think I did a good job removing staple pins. The mesh felt brittle. I dealt with a care. 

"Hello, marbles! At last I see your faces clearly!😃" 

The diameters range from 18.5 to 21 mm. Most of them are spherical, but a few exceptions. 

Below are close-ups. 

Because of the white background, the white in the ribbons becomes hard to see.

The light also comes thru the ribbons. 

Because of these factors, the marbles might look a little different from how they actually appear. 🙏

We see some tiny fractures along the yellow ribbon. 

Below are Hopf wirepulls on a darker background. 

I see small bubbles along the ribbon only on the blue one. 

This group photo shows more of what my eyes actually see than close-ups. 🫧

This is really useful. I'd say it disproves the tip of looking for the big bubble to distinguish Veiligglas, as we can clearly see it present in these. I tried sorting according to the presence of a big bubble yesterday but found it wasn't helpful for dividing the 2 potential types because of other more significant seeming variables.

[shiroaiko]

Hi @LevvyPoole If you found the pictures helpful, I’m happy! Big bubbles are caused when the glass stream is cooler. If the glass is soft enough, it simply accumulates in a metal cup without leaving gaps between the layers. But when the glass is cooler and harder, it tends to trap gaps. These hollow spaces then become big bubbles inside the marble. I guess lowering of temperature can happen with any maker.

 

[Nantucketdink]

So now we are certain there were 3 different makers of wirepulls Japanese, Germany, and Dutch?  Would love to see more definitive proof of Hopf ones