Men's Marcella dress shirt by Coles Shirtmakers (previously Coles of Knightsbridge).  Made in England, probably about 20 years ago.  100% cotton.
Unusual tall Marcella wing collar, lightly starched.  Long Marcella bib.  Stud front (studs available separately).  Double Marcella cuffs for cufflinks.
Collar size 15.5 inches.  
Actual garment measurements:
Chest 44".
Shoulder to shoulder 18".
Length at the back 33".
Sleeve, shoulder to cuff 25".
Sleeve armpit to cuff 22".
Bib length 19" down the centre.

Condition:   Excellent condition (used).  Has been professionally laundered since it was last worn.  Previous owner's laundry mark inside the neck.