Hi all, I have had these unusual looking bottles for a while and very little information is obtainable. Height - 33.5cm, base length - 15.5cm and base width - 9.2cm It would be interesting to find out how these were made as the bottles have uneven shape lines running down the sides and under the base. I am not sure if these are joins, during the making process. The surface of the bottles have a smooth finish nearer the base area but towards the neck is slightly rough. On the right hand side of the bottles, nearer the base (curved area), reads - Paco. On the base reads: 75cl O.FREY + Cie. S.A BERNE. I am not sure whether these bottles could be described as being iridescent as the primary colour is brown but changes slightly to a green when held up to light.
I was able to find similar bottles on the site - 1stdibs.com, however, not very much information is given. Any information or leads, will be of great help. Confirmation is also required that these were made made in Berne, Switzerland around the 1920's.