Pedals and steam

Took my twenties girder frame out for a spin along the local trailway with the family just recently and came across these two beasts at the Shillingstone Railway Project. They're new arrivals and originally from Slovenia. Apparently the plan is to have at least one running soon with help from volunteers and there is some three miles of track to be laid. To find out more about the locomotives themselves visit the Project 62 site.

Girder frame bicycle and Class 62 USA type
tank locomotive from the former Yugoslavia
and now in Dorset.

The girder frame shows off alone.

Here's the second loco. A bit more of a project
than it's brother this one.

1920s mystery girder frame bicycle - Royal Enfield or Robin Hood?

This machine has just come my way. I had been looking for a Royal Enfield Girder or Duplex frame for a while and then this appeared at the right price. Only thing is I really don't know what it is. To all intents and purposes it looks like a Royal Enfield but has no head badge and never has had. 

I've done some investigations and it seems that Robin Hood also offered a girder frame model, possibly actually built by Royal Enfield so this seems most likely what it is. The handlebars may just have been replaced some time in the bike's life and the Sturmey three speed dates from mid thirties but I would guess that the rest of the cycle is early twenties.

Some folks would restore it in this condition but I plan to oily rag and service. It's pretty much rideable as is, but lacks pedals. 

If anyone out there can recognise the manufacturer please do let me know.

Mid twenties girder frame cycle. 28 inch wheels.

Offside view.

The mudguards are very distinctive and may
give a clue for identification?

I like rust and this is a good coating of it. No structural
damage at all just a good patina.

Here's that all important girder. The chainwheel seems to be
generic and doesn't give any clues as to marque.

I'll even leave the period bodges in place if they work!

Perhaps the lamp bracket holds the key to identity?