21ac Fabulous sea monster resembling and immense octopus, said to appear off the coast of Norway _ _ _K_N
50ac UK tax system which originated from the Poor Law Act of 1601 R_T_S
9dn Children's drawing toy which makes geometric patterns using different shaped gears, invented by a British engineer in the 1960's S_I_O_ _ _P_
17dn A small storage container, typically for loose tea leaves _A_D_