C088 black Spanner Square nuts, ¼" a/f, Box at flat (not angled) end, ordinary square middle & cranked end, Meccano stamp top cranked end, date engraved in little dots 11DEC13RT at the other end 80 mm long, 5.74 mm across at crank, 1.45mm thick, 3.92 where the box is bent up. This comes with 7080 25 Multimodels Construction, Special Edition, Shenzen, from Argos this year [2014]. The motor in this set has a similarly applied date 20DEC13RT. The earliest date I have is 06OCT11RT, in 9550 50 Multimodels Construction, Motion System, Made in France, bought at the same time, and the same date in Tintin 0553 Unicorn 2011, Made in France, via Amazon