20 The two pillars, one sea, and twelve brasen bulls that were under the bases, which king Solomon had made in the house of the LORD: the brass of all these vessels was without weight.
Jeremiah 52:20 Cross References - KJV_Cambridge
1 Kings 7:47
47 And Solomon left all the vessels unweighed, because they were exceeding many: neither was the weight of the brass found out.
2 Kings 25:16
16 The two pillars, one sea, and the bases which Solomon had made for the house of the LORD; the brass of all these vessels was without weight.
1 Chronicles 22:14
14 Now, behold, in my trouble I have prepared for the house of the LORD an hundred thousand talents of gold, and a thousand thousand talents of silver; and of brass and iron without weight; for it is in abundance: timber also and stone have I prepared; and thou mayest add thereto.
2 Chronicles 4:18
18 Thus Solomon made all these vessels in great abundance: for the weight of the brass could not be found out.