Focal no. 1.50 for age 47 to 50
NSN 6685-00-501-6501
NSN 6130-01-421-4296
NSN 5998-01-112-4325
NSN 5910-01-463-9061
NSN 5910-01-589-0511
NSN 5985-01-020-7203
NSN 6220-01-411-6919
NSN 6145-01-606-9941
NSN 5945-00-932-1399
NSN 5835-00-446-2944
NSN 6650-01-218-4742
NSN 5975-01-447-2771