Image Item No. Description  1671-1 (Inv)  Basic Building Set Trial Size 31 Parts, 1992 Catalog: Sets: Universal Building Set: Basic  1879-1 (Inv)  5+ Building Set in Bucket 420 Parts, 2 Minifigures, 1992 Catalog: Sets: Universal Building Set: Basic  1880-1 (Inv)  XL Bucket 554 Parts, 2 Minifigures, 1992 Catalog: Sets: Universal Building Set: Basic  1884-1 (Inv)  Small Bucket 187 Parts, 1992 Catalog: Sets: Universal Building Set: Basic  1885-1 (Inv)  XL Bucket 456 Parts, 1992 Catalog: Sets: Universal Building Set: Basic