Weighs approx 50 grams & is 19cms long.  Date stamped on the scoop with the letter T for 1929. Nice used condition. 

OMEGA PART NO 2105. 5 CLICK SCREWS. NOS ORIGINAL PACKET. PRICE IS FOR 5Local Brisbane pickup welcomed._gsrx_vers_634 (GS 6.9.8 (634))

OMEGA PART 2154 5 HAIRSPRING STUD SCREWS. NOS IN PACKET. PRICE IS FOR ALL 5.Not sure but think it fits CAL. 240, 300, 410, 550, 600.Local Brisbane pickup welcomed._gsrx_vers_634 (GS 6.9.8 (634))