Pete and Savage - thanks for posting that pictures of the 9 mm BL boxes. Now we know there are at least four box-label Variations. The two top labels, one with the advice "Ammunition and Fire Arms (interesting that in those days, that was two words instead of “Firearms”) and one without that line of print, one with over labels, and one of the boxes without the “Ammunition and Firearms” with back label only in English. That box of Pete’s should be, by my reckoning and examination of a dozen or so other UMC and REM-UMC boxes in my collection, the earliest of the four. It will be interesting to see what Lew comes up for the date on that one!
For those of us in “Auto Pistol” cartridges, and with box collections for that type ammo, this is a really interesting thread.
I would guess Lew is correct that the 9 mm Browning Long wasn’t a huge seller, except perhaps for any military contracts they may have had at Remington-UMC. I doubt that prior to WWII, there were more than a very few pistols of the caliber in the USA. Sweden, with its Husqvarna copy of the FN-Browning M1903 Pistol, was not involved in WWI, and the only other pistols I can recall were two versions of the Webley, the Model 1910 and an improved version, made primarily for South African Police as the Model 1922 and the French Le Française, with none of those ever made in anything resembling huge numbers. As well as in WWI, after WWI, the Browning saw service in some other countries including the Dutch Navy (1922), El Salvador, Paraguay (1927, Estonia (between 1921 and 1936, Colombia (1937), Russia (Gendarmerie and Police), Serbia - purchased on the open market, not contracted for - and Turkey. Of course Sweden adopted the pistol in 1907, purchasing about 10,000 from FN, but with the outbreak of WWI, started making it at Husqvarna in 1917. After WWII, they were sold on the commercial market, many in the US unfortunately being converted to .380 Auto caliber.
Sweden also had, for a short time, the "Kurlsputepistol m/37 Typ Suomi, but quickly converted most to 9 x 19 mm Parabellum.
Of all these countries, the only ones to make ammo for the pistols in use were Belgium, Czechoslovakia (likely for Latvia who had purchased a small number of Webley 1922 Pistols from England), England, France, Germany (they had a small number of Pistols M1903), Italy (probably just for commercial sales, Sweden and Turkey. Yugoslavia, despite having had the caliber in their catalogs for years, only began making in at PPU a few years ago. You would think that there would have been sufficient quantities of ammunition available for anyone using these guns with manufacture by the United States
unnecessary and unprofitable, but in truth, U.S.C.Co. made the 9 mm BL as well, probably sometime in 1917 or after, as the box label mentions the Husqvarna pistol that went into production in 1917.
The UMC daily log, continued for a short time after they acquired Remington’s ammunition business, has the entry"9m/m Browning Long M.C., Jan.1914 commenced making FOR EXPORT. I personally believe, although without much documentation, that most or all of the 25–round auto pistol-caliber boxes from Remington were for export, and not domestic sales. Again, there would have been virtually zero USA market for the 9 mm BL cartridge at the time they were producing it. The .32 auto .25-round Box I have shows the caliber only in Metric, “7.65 m/m,” a near-positive indication that it was an export product (in that packaging) as well.
Reference: Personal notes; personal observations; IAA Journal 443, “The 9 mm Browning Long Cartridge - Part I,” Woodin Laboratory compiled by John Moss, pages 4-18; same title and author, Part II, IAA Journal 444, pages 44-57.