Roy, it is not an American patent since they were issued weekly and the closest 1893 date is March 28. No patents were issued in the U.S. on March 27, 1893.
I do not see Hoffs or Hoff in the Alphabetical Index to the British Small Arms Patents, and I see no Small Arms British patents issued on March 27, 1893. This does not 100% mean that it is not a British patent, but more likely it is from another country.
That leaves us with is it a Canadian Patent ? Or patent from elsewhere ? If the Hoffs marking is not extremely clear on the magazine, could it be another marking ? Like maybe Huffs, or even something like Ross's ?
Here's an interesting ebay item. Could Hoff Manufacturing relate to your item ? http://www.ebay.com/itm/WWII-US-1942-Dated-R-M-Co-Cartridge-Belt-w-Hoff-Mfg-First-Aid-Pouch-1918-Pouch-/190800076296?_trksid=m263&_trkparms=algo%3DSIC%26its%3DI%26itu%3DUCI%252BIA%252BUA%252BFICS%252BUFI%26otn%3D11%26pmod%3D140903799746%26ps%3D50
Or could the leather case patent 244129 of aug. 16, 1881 of Augustus and Henry Hoff relate to your item ? http://www.google.com/patents/US244129?printsec=drawing&dq=patent:244129&ei=sDQqUbm3BsKviAKZ4IEI#v=onepage&q&f=false
Last edited by Daryl Hallquist; 02/24/13 11:47 AM.