Benzin tank til Velo Solex model 3800, 1967 , Metal eller plastik?

Hej på dansk
Jeg har lige købt en Velo Solex model 3800 fra 1967.
Jeg vil lave nogle mindre reperationer på den og sælge den igen. Måske jeg skal have den som service Solex. Jeg reparere lidt for andre Solex kørere. Når jeg så har deres Solex så kan de låne denne i reparationstiden. Det må jeg lige tænke lidt over.

Der er metal metal tank på denne ? Jeg var af den tro at model 3800 kun var lavet med plast tank.
Er der nogle der kender årstallet/motor nummeret hvor man skiftede fra metal til plast tank?
Hvis jeg vælger at sælge den skal den være så original som mulig.
Håber at der er nogle der kan hjælpe med dette

Hello in English
I just bought a Velo Solex Model 3800 from 1967.
I will do some minor repairs on it and sell it again. Maybe I should have it as a service Solex. I repair sometime for other Solex riders. When I have their Solex so they can borrow it in repair time. I must just think a bit about.

There are metal, metal tank on this? I was of the belief that the 3800 model was only made with plastic tank. Are there some who know the year / engine number where Solex switched from metal to plastic tank?
If I choose to sell it must be as original as possible.
I hope that there are some who can help with this.

Hilsen/Best fra/from Steen i København/Copenhagen

Hi Steen,
The first S 3800s came with metal tanks.
There is no exact engine serial number at which the tanks switched to plastic.
The change was gradual, and slower in some countries.
The plastic tanks began to appear in approximately July of 1966, but metal tanks could be found on S 3800s until at least March of 1968.

Hej Steen,
Det første S 3800s kom med metal tanke.
Der er ingen nøjagtige motorens serienummer, hvor tankene skiftet til plasten.
Ændringen blev gradvis, og langsommere i nogle lande.
Plasten tanke, begyndte at dukke op i ca juli 1966, men metal tanke kunne findes på S 3800s hvert fald indtil marts 1968.

http://www.lesolex.com/historique/3800/3800.htm

Solexly, Brian