Physical description
Crackle black single unit. Supplies Gunner with range and ballistic 'drop' information. (Three units held.)
Inscriptions & markings
Serial No. 4740 (Sperry) S/No. 410380 (N>C>R> under Licence) S/No. 411901 (N>C>R>)
Crackle black single unit. Supplies Gunner with range and ballistic 'drop' information. (Three units held.)
Serial No. 4740 (Sperry) S/No. 410380 (N>C>R> under Licence) S/No. 411901 (N>C>R>)