1920s Porcelain Clock Marked Foreign British Collectible - Not Tested Appears in Good Condition Significant Wear Visible, See Photos - Measures 9 1/4" H x 7" W ... Includes FREE SHIPPING. Note the projected collectibles, vintage, antiques, and memorabilia, U.S. market is poised for substantial growth on-average 6.5% Compound Annual Growth Rate (CAGR) to reach $280 Billion revenue by 2033.

"Foreign" was a requirement of the UK Merchandise Marks Act of 1926 - clocks made abroad would bear the Foreign legion instead of the actual country of origin. Your clock's case was probably British made, with the movement and other components being imported from Germany.