Louvre window

When I was a little girl, my dad's visit to the flat in Singapore was a once-a-year affair, for two days or so. I would know about the day he was coming in advance, and would station myself at the louvre window of the bedroom which opened into the public corridor on the fourth floor of the high-rise. The lower two or four leaves were metal, probably aluminum: for privacy, and never opened. The upper four or so leaves were the milky glass kind with a safety wire grid inside. Those would be open. Over the whole opening was a security iron grille with diagonal grilles. When I was a little girl, climbing these grilles was easy and fun. When I heard footsteps, I would spring up and climb on top of the grille to look out to see if it was my dad. The corridor was sunk 1 ft 6 in lower than the flat, so from my position I would see the top of my dad's head as he walked by. It was a grand and exciting affair.