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Here's a 1948 .410 Ideal Grade with 'Belgium LLH' on the right barrel over-stamped with 'London Steel.' London Steel was introduced on the 0 grade by Halcomb Steel Co. in 1907, and used on the post-1913 Ideal and Skeet Special. LLH is the trade mark of Laurent Lochet-Habran, a Belgian barrel maker. Sanderson Steel is reported to have purchased barrels from LLH, and their mark has also been found on Fox, Ithaca, Baker, and Hunter Arms Fulton "Ranger" for Sears guns.