Large corded flash gun (ASA bayonet) uses #5 or Press 25 bulbs for longer distances and SM or SF bulbs closer than 5ft or when using the Close-up lenses. Fits Polaroid accessory shoe. Made by Kalart. Test bulb on rear. Clear plastics safety shield. BC - battery Capacitor flash

Click picture for a comparison on #200 and #201 Battery Capacitor Flash Guns