Ha ha... Diana Day: like it . The Milbro Diana series 70 model 74 you have was manufactured in Motherwell, Scotland, throught the 1970s, and a slightly modified version was manufactured again by the Millard Brothers from 1980 until the end of all production in 1982, and was called the model 75. Both the 74 & 75 had a .177 brass lined smooth bore barrel. Based originally on a the Milbro Diana model 16, when the model 74 was first launched in 1970, it was simply stamped 'SERIES 70' on the chamber, but later models were stamped SERIES 70 MODEL 74 MADE IN Gt.BRITAIN (hope this helps ). ATB: Gareth W-B.