The early method of making window glass was to blow a bottle with straight sides,then cut off the top and the bottom. Next,the bottle was slit and allowed to flatten under heat. This produced glass with many imperfections,as shown here | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Amos, Jim |
Taille de l’image : | 3382 px × 5222 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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