US$257.55 Large port opening in aluminum (rectangular porthole) with 4 aluminum cranks, rounded corners, ideal to make a coffee table. 72/52 cm Glass 60/40 cm, 13 kg, thickness 6 cm (sash 3.5 opening 2.5 cm). Opening with 2 hinges, closing by 4 mannetons. We select the portholes whose glasses are in good condition. They are never split but may have some small scratches due to 40 or 50 years of use