M is for Minor Mob of Metal Motorcycles

So soon after the last Motorcycle post, here's another one! It's the flats/semi-flats in the 'storage' box, which won't go with the other flats because they don't have the kinds of bases suited to the foam-boards I use for the 'proper' metal flats, whether German Kulmbach/Nuremberg types or otherwise.

Two small all-over, one-colour factory-painted, die-cast alloy bikes and two much larger un-decorated machines, one a copy of the other and you can see that the two small ones have tiny little side spikes to help them stand up, but nothing to keep them firmly in the slots I cut in the foam boards, while the two larger motorcycles have large chunky stub-bases (or 'stands') which would force huge holes/dents in the slots rendering the sheet unusable further-on, as they do get moved around as other things come in.

Close-ups of the small ones, there's a chance they are different generations of the same board game's pieces, but I suspect they are from two different board-games, I'm not sure if we've seen these two before, I know I have shown the other one, which goes with other vehicles, and I'll try to drag them out and do a comparison between all three HO/OO gauge-compatible pieces.

These are informative, as the shiny one is the better of the two, with the oxidised one clearly a poorer copy, but the dim one is old, the shiny one much newer and possibly still available as a home-casting mould somewhere. The fact that it's so shiny though is down to the low or non-existent lead content in modern moulding alloys, as opposed to the high lead content of the older one, which has grayed with oxidising-age.