I worked at Saddles and Paddles bike shop in Exeter in 1997 til 1998, and I ordered a set of Odyssey Twisted metal pedals in silver in for a ustomer, they were fresh out - though most were only 1/2" thread, as most BMX low end bikes had one piece cranks... though they did do 9/16" , but these were thin on the gound. ... so they are late mid school by my reckoning.