Vivitar Auto Thyristor 3700 Flash for Canon - Tested / Works

Vivitar Auto Thyristor 3700 Flash

Vivitar Auto Thyristor 3700 Flash for Canon - Tested / Works

Vintage Vivitar Auto Thyristor 550FD Flash Unit for [Nikon/Canon/Pentax Tested

Vivitar Auto Thyristor 3700 Shoe Mount Flash for Canon-Tested

Vivitar Auto Thyristor 283 Flash, PLUS wire connector, Tested Works

Vivitar Auto Thyristor 3700 Flash Tested Works Great Condition Ready For Use

VIVITAR AUTO THYRISTOR 3700 FLASH Tested Excellent Condition