Spada Roma dress/casual shirt.
Pure lightweight linen in icy "celeste" blue with whitish streaks & bumpy texture variations.
Spread collar & darted back for shape.

Excellent condition - no holes, no stains.

Tagged 17 43 - approx. large. 
Measurements in inches:
pit to pit 23.25
waist 22
shoulders 19.25
sleeves (from shoulder to cuff) 26.25
rear length (excluding collar) 31.5