What size is this BB blazer?

[mainy]

I have a brooks brothers blazer I'm going to throw on ebay, but don't know what size to list it as.

It's measurements are approx.

Shoulder seam to seam - 19"
Pit to Pit - 23"
Sleeve - 24 1/2"
Bottom of collar to hem - 30 1/2"

Does anybody know what size this falls into? Thanks

 

[bpanicola]

Seems like a 42 Regular to me with the chest measurements. Though the shoulders seem narrow. Some of my 40 short jackets have 19" shoulders.

 

[billiebob]

I agree it looks like a 42R. My polo suits have shoulders 18 or 19 inches.