Vintage handmade DB by Chester Barrie for Harrod’s, thrifted on eBay.
Three lessons from this fit:
1) yellow (Charvet) tie works better on midnight blue suit;
2) diminutive tab collar does in fact work with wider DB lapel, which is somewhat counter-intuitive;
3) widely-spaced stripes can work without looking like Al Capone, so long as the stripes themselves are not too thick.