Question: What is the average year for Wallenstein with 1A1 design?
SQL: SELECT AVG("Acquired") FROM "2-12185768-1" WHERE "Design" = '1A1' AND "Name" = 'Wallenstein';

Question: What design was acquired in 1875?
SQL: SELECT "Design" FROM "2-12185768-1" WHERE "Acquired" = 1875.0;