BSI 1520 balance rod

Thanks for posting. This might be an S380-16 or S385-16 Channel Balance. The only difference berween these two channel balances is the dept of the bottom nylon shoe, or the 'heel-to-toe' measurement. See the diagram below for reference. Compare both with your old balance and let me know if either match what you need. In either case, for a stamp option choose 1520.

Comparison of the S380 and S385 balance shoes.