sentences:  The iron-work of the lower gates, being on such a large scale, produced a solid, intimidating aspect compared with the much lighter appearance of the balcony railings.The huge mass of iron made an impassable barrier but also a massive weight and it would have taken some effort to slide the gates open and close.The upper part of the gates which reflect the sandstone carvings above the entrance were added later and show a much lighter touch, using the spaces between the iron to great effect.