 The Sovereign , released in 1976 , represented an attempt to move upmarket in an increasingly saturated market . In December 1976 , the chrome plated version of the Sovereign cost GB £ 30 and the gold @-@ plated version GB £ 60 , including VAT , but profit margins on the Sovereign were so small that Sinclair ended up selling the Sovereign at a loss , and it was not a commercial success . The Sovereign was made in England , like every other Sinclair calculator except the President . 
 The Sovereign , released in 1976 , represented an attempt to move upmarket in an increasingly saturated market . In December 1976 , the chrome plated version of the Sovereign cost GB £ 30 and the gold @-@ plated version GB £ 60 , including VAT , but profit margins on the Sovereign <a href='uninflect' title='1'><mark>were</mark></a> so small that Sinclair ended up selling the Sovereign at a loss , and it <a href='negative_concord' title='2'><mark>was</mark></a> <a href='negative_concord' title='3'><mark>not</mark></a>a commercial success . The Sovereign was made in England , like every other Sinclair calculator except the President . 
The Sovereign , released in 1976 , represented an attempt to move upmarket in an increasingly saturated market . In December 1976 , the chrome plated version of the Sovereign cost GB £ 30 and the gold @-@ plated version GB £ 60 , including VAT , but profit margins on the Sovereign was so small dat Sinclair ended up sellin da Sovereign at a loss , and it ain't a commercial success . The Sovereign was made in England , like every other Sinclair calculator except the President .