I thought this might be worth doing, prompted by consideration of my latest purchase (first photograph), so here you go:
I like this one - London tailored.
Savile row - black herringbone, and note the detail below - an extra button set into the lapel to keep it closed:
Another grey one:
Sand/cream/light buff this time - possibly some sort of washed silk? It feels a little too slippery for linen:
This is an interesting one; I suspect that it is technically an evening waistcoat, but I am thinking of trying it during the day, as part of a morning coat/frock coat ensemble:
A single-breasted morning waistcoat with notched lapels:
A braided and slipped waistcoat, also see the detail below:
A simple waistcoat in "Jersey weave" - would work as part of a half morning dress/stroller ensemble or in a more countrified setting:
Some country ones next.