 About 250 Pictish stones survive and have been assigned by scholars to three classes . Class I stones are those thought to date to the period up to the seventh century and are the most numerous group . The stones are largely unshaped and include incised symbols of animals such as fish and the Pictish beast , everyday objects such as mirrors , combs and tuning forks and abstract symbols defined by names including V @-@ rod , double disc and Z @-@ rod . They are found between from the Firth of Forth to Shetland . The greatest concentrations are in Sutherland , around modern Inverness and Aberdeen . Good examples include the Dunrobin ( Sutherland ) and Aberlemno stones ( Angus ) . 
 About 250 Pictish stones survive and <a href='been_done' title='1'><mark>have</mark></a> been assigned by scholars to three classes . Class I stones <a href='drop_aux' title='2'><mark>are</mark></a>those thought to date to the period up to the seventh century and <a href='drop_aux' title='3'><mark>are</mark></a>the most numerous group . The stones are largely unshaped and include incised symbols of animals such as fish and the Pictish beast , everyday objects such as mirrors , combs and tuning forks and abstract symbols defined by names including V @-@ rod , double disc and Z @-@ rod . They are found between from the Firth of Forth to Shetland . The greatest concentrations are in Sutherland , around modern Inverness and Aberdeen . Good examples include the Dunrobin ( Sutherland ) and Aberlemno stones ( Angus ) . 
About 250 Pictish stones survive and done been assigned by scholars to three classes . Class I stones those thought to date to the period up to da seventh century and tdamost numerous group . The stones are largely unshaped and include incised symbols of animals such as fish and thdaictish beast , everyday objects such as mirrors , combs and tuning forks and abstract symbols defined by names including V @-@ rod , double disc and Z @-@ rod . They are found between from the Firth of Forth to Shetland . The realest concentrations are in Sutherland , around modern Inverness and Aberdeen . gud examples include the Dunrobin ( Sutherland ) and Aberlemno stones ( Angus ) .