Lampshade Prescot WOFI 7550 glass replacement, glass screen replacement, lampshade glass for table lamp light, hole diameter 19 mm

have 2 lamps and knocked over and smashed one.....bought as a replacement...after measuring it is smaller than expected and its not white .....my own shade is bright white when switched off the replacement is off white and creamy by comparison.......but hunted everywhere for a shade and this i thought was a direct replacement in white...blabla......but a decent shade to replace broken........ so good nonetheless