LTU932 From Germany, joined Jan 2006, 14068 posts, RR: 47
Reply 1, posted (8 years 8 months 3 weeks 5 days 11 hours ago) and read 2984 times:
They're not different. Just that a great part of the cockpit window frames were painted white to colourmatch the fuse. Sometimes an unpainted one can appear if it had to be replaced before a D-Check or a visit to the paintshop, so what you see is perfectly normal, at least for BA.