Mx White Modulex, Window Frame Section, Top 1 x 12 (LEGO on Studs) Some of them are yellowed.
It is possible to get a discount for the whole super lot, so please ask about it if you're interested. Items For Sale: Parts: Modulex, Window: Mx1591L Part of Super Lot ID 46912 Loc: Poland, Min Buy: ~US $15.37