Vivitar 283 35mm Automatic Electronic Camera Flash Thyristor Untested

Vivitar SB-4 283 Black Auto Thyristor Shoe Mount Flexible Arm Camera Flash -D21

Vivitar 283 Auto Thyristor Shoe Mount Flash

Vivitar Shoe Mount Camera Flash - Auto Thyristor 283 Universal Flash Unit

Vivitar Auto Thyristor 283 CAMERA FLASH, SB-4, shoe mount, Untested

Vintage Black Vivitar Auto Thyristor 283 Photoflash Shoe Mount No Cord Untested

Vivitar 283 Auto Thyristor Electronic Shoe Mount Flash - UNTESTED

Vivitar 283 Shoe Mount Flash for Universal Vintage