Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

...but another easy way to spot a D24 from a D28 is the sight glass is in the middle on the D28 and sits lower on the D24

There´s loads of give aways, if every little detail was counted in...

Close up it is pretty obvious, with the humongous boiler and raised enginebase on the D28, but from a distance at shows/sales, it usually is the steamdome that gives it away for me.
There is after all only two Wilescos models which has had one of those, so even 50 yards away it is possible to spot if its worth altering a pre-planned route or not.