I have many bottles and this is another one which I believe is rare. It is green in color and says Geo. J. Holt & Sons Ltd. Shrewbury and has on the bottom of the bottle R. B. B4924. Any help would be appreciated.
Sounds like it could be an English beer bottle.
The R.B stands for Readfearn Brothers, a bottle manufacturer from Barnsley, England.
As for some info about the bottler Geo Holt you could post a message on www.bottledigging.co.uk/phpBB2/portal.php and I am sure someone will help you out.