Two corrections:
The Bob Isaacs composition that I accidentally duplicated is "Return 2 Sender".
"Return to Sender" is a different Bob Isaacs dance with a double progression.
I'm now proposing Vallimont's Silver Hammer be the following dance instead:
Becket
A1
Circle Left
Neighbor Swing
A2
Promenade across with neighbor
Ladies chain to partner
B1
Right to neighbor, balance and pull by; pull by partner left
shadow DSD 1x
B2
Partner Balance and Swing
slide left
(That is, unless that one exists as well; in which case I'll write her a different one.)