Example of how YMMV. I wear a 9.5 D in the 65 and feel they fit reasonably well, albeit perhaps a touch snug. I picked up the Larchmont on the 333 in the same size and find it much too tight, it pinches on my outer toe.
Vintage Palm Beach madras jacket, size 40 (see measurements)
Pit to pit: 20.75 inches
Sleeve from shoulder seam: 24.5 inches
Length from bottom of collar: 30.5 inches
Shoulder, seam to seam across back: 18 inches
Sending a thrift shout out to @matty-long-legs today.
Had a University function so I decided to wear both a school color tie and pocket square (yeah, a little matchy matchy, but for this function it was appropriate). BOTH, sent to me unprompted and completely FREE by MattyLongLegs, a person I've never met, but just chatted with through this thread. Great bunch of folks here!