The Wikipedia entry is actually pretty good at rounding out the history:
This article provides a bit more detail:Salmon & Gluckstein were a British tobacconist. Founded in London in 1873 by Samuel Gluckstein (1821-1873) and Barnett Salmon (1829-1897), they pursued an aggressive expansion to become the largest tobacco sellers in the UK,with over 140 retail outlets.They claimed however to be the largest tobacconist in the world.
The Gluckstein and Salmon families grew to prominence in the second half of the nineteenth century through their involvement in the tobacco industry.
Beginning as small-time cigar manufacturers, by the turn of the century Salmon and Gluckstein Ltd was the world's largest retail tobacconist, owning 140 retail outlets in 1901. Salmon and Gluckstein Ltd was bought by Imperial Tobacco in 1902 and the brand remained in prominence until 1955.
The business was started in 1855 by Samuel Gluckstein who, having arrived in London in 1841 from Germany, began working in the Jewish tobacco industry. The first business operated from Crown Street, Soho, and by 1864, when the firm was incorporated, Samuel Gluckstein had been joined by Henry Gluckstein and Laurence Abrahams. By that date the business had relocated to 43 Leman Street. In 1870 a difference of opinion concerning the sharing of the profits resulted in the firm's dissolution. Henry Gluckstein and Laurence Abrahams went on to found Abrahams & Gluckstein, cigar manufacturers of 26 Whitechapel High Street, while Samuel Gluckstein formed a partnership with his two sons Isidore and Montague Gluckstein. They were also joined by Barnett Salmon, a tobacco salesman, who later became Samuel's son-in-law by marrying Helena Gluckstein. In 1873 Samuel Gluckstein died leaving the business to his two sons and Barnett Salmon. In that same year the company Salmon & Gluckstein Ltd. was established. In order to avoid future family disputes the three men decided to form a family fund by pooling their resources. The principle of the venture was to encourage the strong to support the weak, with each member withdrawing what was required. As the number of members increased over the years, a more ordered system developed, but essentially this tightly-organised pooling arrangement formed the basis of the bulk of the family's business activities from the late nineteenth century onwards.
Until 1887 these business interests were centred on the firm of Salmon & Gluckstein, tobacco manufacturers and tobacconists. From 1887, however, Montague Gluckstein became interested in the idea of providing catering services for the large exhibitions which were sweeping Victorian Britain. Judging the business of catering to be beneath them, the family only gave their support to Montague on the understanding that the family name would not be used. Accordingly, Montague began searching for a suitable figurehead for his new venture, finding him in Joseph Lyons, a distant family relation. As a result the family company of J. Lyons and Co. was formed.
http://www.sheffieldhistory.co.uk/forums/index.php?/topic/15312-big-cat-missing/
This excellent article about Bewlay brings some light, but also many questions...
http://rebornpipes.com/2014/03/07/house-of-bewlay-pipes-tobacco-leaflets/
I love this olde Bewlay jar:
http://collectionsonline.nmsi.ac.uk/detail.php?type=related&kv=157147&t=objects
As far as I can tell, Bewlay only had 2 locations in the late 1800's - 49 & 74 Strand WC and 143 Cheapside EC.
Difficult to ascertain or trace the detailed developments of how it all went down with the S&G/Bewlay thing.
Yet more digging,
for another day.
S&G supplied every proper article for the involved smoker, including pipes branded under their own house name.
Look through a good few pages here with a nice zoom:Illustrated Price List Uniformly Current at all the Modern Trading Establishments of Salmon & Gluckstein, Limited. Tobacco Manufacturers, Tobacco Cutters and Spinners, Cigar Makers, Snuff Grinders, Cigarette Manufacturers, Pipe Makers and Mounters, Goldsmiths and Silversmiths, Importers of Havana, Mexican, Manilla, Indian, and other Cigars, Importers of Meerschaum and Amber, Importers of Cigarettes and Tobacco from all parts of the World, Walking Stick Makers and Mounters. The Largest Tobacconists in the World.
http://www.tobaccocollectibles.co.uk/sg1.html
Here's another clutch of sample pages:
Playing cards are lucifers were popular items too...
here's some tobacco!
All the variants of Life Boat are highly interesting:
Broken windows at the tobacconists' Salmon and Gluckstein. Smashed by suffragettes as part of the West End window-smashing campaign, 1 March 1912. In Votes for Women, 23 February 1912, the WSPU defended their decision to pursue a policy of window smashing. 'Deeds not Words is the motto of this movement, and we are going to prove our love and gratitude to our comrades by continuing the use of the stone as an argument in the further protests that we have to make....does not the breaking of glass produce more effect upon the Government?'.
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The Blitz::
"As the fires spread and increased in number, it seemed that nowhere could possibly escape destruction. Even in such dreadful circumstances though, people afterwards recollected many tales of a more light-hearted nature, including the sweet smell of tobacco smoke issuing from the burning newsagents, Salmon & Gluckstein, on the corner of Broadgate and High Street."
http://www.historiccoventry.co.uk/blitz/the-raid.php
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In WW2, the formidable pair of German battle cruisers, Scharnhorst & Gneisenau, who often worked as a team, was nicknamed by the British as Salmon & Gluckstein.:
https://books.google.com/books?id=Esf1GomDiikC&pg=PA115&lpg=PA115&dq=%22+Scharnhorst+and+Gneisenau%22++gluckstein&source=bl&ots=a298EcHnwS&sig=Wa1vRfuznvoNrNGNM4P6y89ZQUs&hl=en&sa=X&ved=0CB0Q6AEwADgKahUKEwjW6Omp_NXHAhXKGz4KHVgXAcU#v=onepage&q=%22%20Scharnhorst%20and%20Gneisenau%22%20%20gluckstein&f=falseApart from the U-boat menace a new factor arose when the German battle cruisers Scharnhorst and Gneisenau, (nicknamed by us as Salmon and Gluckstein), made a successful sortie from their base, sinking 22 Allied ships before arriving at Brest for refit. They were joined, later in the year, by the heavy cruiser Prinz Eugen. With this new threat to our shipping, the RAF carried out raids, both day and night, to destroy these powerful units of the German fleet.
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This book posits that Karl Marx was an "enthusiastic customer" of S&G...:
https://books.google.com/books?id=cp_gBQAAQBAJ&pg=PA4&dq=%22salmon+%26+gluckstein%22+marx&hl=en&sa=X&ved=0CB4Q6AEwAGoVChMIkJWnoanWxwIVxxs-Ch3yIQz_#v=onepage&q=%22salmon%20%26%20gluckstein%22%20marx&f=false
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And, of course, the Lyons Tea relationship...:
https://en.wikipedia.org/wiki/J._Lyons_and_Co.
This huge picture is nice to look at, and as you can see S&G and Lyons are right next door to each other...
http://flashbak.com/wp-content/uploads/2015/05/Lyons-Tea-shop-c.1930.jpg
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