Thanks - these are from the 1950s and seem to suggest a contrasting collar was appropriate then. In addition, Vox's looks incomplete (for want of a better term) so I am inclined to go with a contrasting collar.
The Churchwell Bros.' outfits are the equivalent of bucking back at a sniper whilst driving your Rolls into the side of a building whilst a female companion performs oral on you.
Essentially, the Churchwell Bros. are the Rick Ross of #menswear.
Steven Hitchcock bespoke Velvet no vent, one button, peak lapel DJ with gros grain waistcoat and bow tie, bespoke Imperial collar by Budd, T & A shirt and PS.