Blue Dot cubes made in the US by Sylvania. Unopened boxes in excellent condition - but untested. Electronic –.
Vintage Sylvania Photo Flash Bulbs NOS M3B Blue Dot Lot 12
Vintage Sailwind Photo Systems, Magnetic Photo Montager Development
Vintage Sylvania Blue Dot Press 25B Flashbulbs 12 bulbs
Vintage Sylvania Flashbulbs Blue Dot Press 25B Lot 12 NOS
(2) Vintage Sylvania GE 5b AG1B Blue Dot Flashbulbs NEW 12 +7 Bulbs Made in USA
Vintage Sylvania Flash Bulbs Loose Blue & Clear Lot 30 M2
