The 151 is for refilling that square apothecary jar in the picture front and viewer's left of the bottle. I dip my razor with blade after rinsing. Blades last longer without crud on them oxidizing the coating and I never seem to have to clean my razors of soap scum. Since I use mostly vintage blades, (Schick Plus Platinums, Swedes, etc) it's worth it for me. Plus it smells better than rubbing alcohol.
The soup terrine, ah yes. That is what I keep my lather warm in. I build my lather in one of the silver footed bowls and then float them in the warm water of the bain marie. A giant electric silver scuttle substitute. Pop in a pyrex and bisque for all.
“Who said anything about slicing you up? ... I just wanted to carve a little Z on your forehead-- nothing serious.” -Oscar Zeta Acosta