Grocott & Ward, comps. Grocott’s Familiar Quotations, 6th ed. 189-?.

Steel

My man’s as true as steel.
Shakespeare.—Romeo and Juliet, Act II. Scene 4. (Romeo to the Nurse.)

Steel to the very back.
Shakespeare.—Titus Andronicus, Act IV. Scene 3. (Titus to his brother Marcus.)

Like a man of steel.
Shakespeare.—Antony and Cleopatra, Act IV. Scene 4. (Antony to Cleopatra.)

Why, he’s a man of wax.
Shakespeare.—Romeo and Juliet, Act I. Scene 2. (Nurse to Lady Capulet.)