In one of the other thread related to this catalogue, Bernard mentioned the marketplace as a factor in names.
For example the catalogue includes both Jugs and Pitchers - usually assumed to be exclusive to UK/US markets. The 'Pitchers' appear to be large sized jugs.
In this case I do not think S&W were considering this, the price list mentions their London showroom, New York and Hamburg addresses. Also I got this catalogue from Australia/New Zealand and it has been rubber stamped with the company name "Gilbert J. McCaul & Co."
In the January 1950 Pottery Gazette & Glass Trade Review in the Glass Study, this company is described as (page 90) "Gilbert J. McCaul & Co., Ltd., an old-established exÂport house." and mentioned in a tea-pot advert on the back cover: "Near & Middle East, Central & South America, Portuguese East & West Africa, India, Kenya Colony, Mauritius, Fiji Islands, Ceylon: Gilbert J. McCaul & Co., Ltd., 16, St. James’s Street, London, S.W.1."
A quick scan through some other trade directories show that McCaul do not appear to advertise themselves - so until I have them all digitised so can locate them anywhere in the directories, cannot trace any more data. If anyone knows anything more about this company please post, thank you.