Help Me Identify This Image Please.

It's an older design.  If I were to start to show you all the different D51's that Plarail have produced over the years, I'd still be here compiling the post tomorrow! Those aren't the only two designs of piston rods, and they didn't even have tenders for many years.....

@Chrisjo, Thanks for thebinformation.
Wow plarail really loves the d51, after all, it's their country's famous engine, the master of the railway.

[Super]

I love the 'long' side rod versions on the earlier Plarail steamers even the Thomas ones like earlier versions of Gordon and Henry. They look and move a little more realistic than the modern, axle to axle types. That being said, I can see we they changed as the longer ones could easily come out of the front slide, get bent and possibly poke an eye out when out and the motor running. I imagine after all those years they changed them for safety and to last longer.