Product 258/409
The base is stamped "KWV" .The BZE type fuze is the later type with no "wings".
CALIFORNIA RESIDENTSWARNING: THIS PRODUCT CAN EXPOSE YOU TO CHEMICALS INCLUDING LEAD, WHICH IS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM. FOR MORE INFORMATION GO TO WWW.P65WARNINGS.CA.GOVThis product was added to our catalog on Thursday 22 May, 2008.