Bottles found durimg renovation to medieval cottage

We are renovating a cottage which parts dates back to 1300s. We keep finding glass bottles and would like to try and date them. I suspect most are Victorian an don’t go back that far really but if you could help that would be great. I have attached three photos of our best finds. Most tend to be more cracked etc but these are in relatively good condition although need a proper clean up. Any advice on how to clean properly without damage?






2A7F643E-B204-4D06-B2E0-6E0DD9A3EC67.jpeg
2448 x 3264 - 1M
Login to view larger file
8BFA4629-8A96-4E1D-9AE1-C1B754BD98D0.jpeg
2448 x 3264 - 2M
Login to view larger file
0558892F-D287-4DB5-B1C0-CCCF61C7E75B.jpeg
2448 x 3264 - 2M
Login to view larger file
4A19F40A-A1B6-437C-82EB-1E223A21B800.jpeg
2448 x 3264 - 2M
Login to view larger file
F74386FC-DFFA-49C0-9C67-FA473A55DE6E.jpeg
2448 x 3264 - 2M
Login to view larger file
96C8FC7B-6D83-46C4-97FD-91064EFFCF87.jpeg
2448 x 3264 - 2M
Login to view larger file

Comments

  • Your first bottle is a Codd soda, owing to the unique glass marble closure.

    The vertically ribbed cobalt blue bottle is almost certainly a poison bottle.

    All of your bottles have significant etching or staining resulting from being buried. Glass which is continuously exposed to moisture will go through something of a chemical transformation on the surface.

    You can find a technical explanation of that here - http://nautarch.tamu.edu/CRL/conservationmanual/File5.htm

    From a practical standpoint, the way that bottle collectors clean the white residues off the surface is by polishing. The process is similar to that of polishing / tumbling rocks.
Sign In or Register to comment.