The H.R.F. of Heuse-Riga Fils has been found on Ithaca Flues, post-1900 L.C. Smith hammer guns, and Sears/A.J. Aubrey.

J.G. Riga also supplied barrels to Forehand & Wadsworth, Colt, Bacon Arms, and C.S. Shattuck.

http://www.littlegun.be/arme%20belge/artisans%20identifies%20h/a%20heuse%20riga%20gb.htm
http://www.littlegun.be/arme%20belge/artisans%20identifies%20h/a%20heuse%20dynastie%20gb.htm


Brief submitted by J.G. Riga, Feb. 15, 1913 to the Tariff schedule hearings before the Committee on Ways and Means, House of Representatives
http://books.google.com/books?id=BCIuAAAAYAAJ&pg=PA5979&dq
Shotgun barrels are not made in this country and they can not be bought, and all the small gun manufacturers are obliged to buy all their barrels abroad and this duty would really work a great hardship to all the double-barrel gun manufacturers, such as the Hunter Arms Co., Fulton, N. Y.; Ithaca Gun Co., Ithaca, N. Y.; Baker Gun & Forging Co., Batavia, N. Y.; Lefever Arms Co., Syracuse, N. Y.; the Crescent Fire Arms Co., and the Hopkins & Allen Arms Co., of Norwich, Conn.; A. H. Fox Gun Co., Philadelphia, Pa.; N. R. Davis & Sons, Assonet, Mass., etc. All the above manufacture double-barrel guns, which is a real sportsman's gun.
Winchester Arms Co. and Remington Arms Co. manufacture mostly rifles, and automatic shotguns; single barrels, which are called "game destroyers;" these latter two manufacturers would not be affected by the duties, as their barrels, being single barrels and heavy, are made by themselves.

Thanks to Walt Snyder who provided this quotation from Harry Howland regarding c. 1920 Ithaca Gun Co. barrels - "We were getting all our barrels forged, rough drilled and rough turned from Belgium. We were purchasing them from either Samuel Buckley & Co. or from J. Riga & Co. and it was not until two or three years later that we began purchasing those barrels from the Flannery Bolt Co."
S. Buckley & Co., Manhattan was incorporated in 1921.



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