WTB: Replacement 2.6 volt bulbs for Collins Dynamo flashlight

[Motorhead]

I have 2 of the Collins dynamo flashlights. They were built in the 1930's. They are heavy and you wind up the end and it runs for about 2-3 minutes. It takes a 2.6 volt low amperage bulb. Unfortunately, there is NO bulb number. The one I have has a E10 base with just a single depression into the bottom of the socket, so NO screw base. The one bulb said "Made in Japan". The filament is a single, non wound, wire filament. The globe is a round, G-4.5
Any leads or supply of some for sale is appreciated. email: [email protected]

 

[George E.]

I have 2 of the Collins dynamo flashlights. They were built in the 1930's. They are heavy and you wind up the end and it runs for about 2-3 minutes. It takes a 2.6 volt low amperage bulb. Unfortunately, there is NO bulb number. The one I have has a E10 base with just a single depression into the bottom of the socket, so NO screw base. The one bulb said "Made in Japan". The filament is a single, non wound, wire filament. The globe is a round, G-4.5
Any leads or supply of some for sale is appreciated. email: [email protected]

Hello.... after many attempts, I have found a good replacement for the Collins No Battery Flashlight bulb. #131, 1.3 volt, 0.1, G3.5, E10. The globe is smaller, its 1.3 volts and it has screw base however the original clip will slip onto the bulb theads. It has very similar brightness and I suspect about the same amp rating as the original. If someone has a better replacement please post. I also have 2 Collins flashlights and collect early and generator flashlights.