fxo black plastic bottom magazines

[HerbZ]

How can you tell an authentic black plastic bottom on an fxo eagle 37 P.08 magazine from a modern replacement black plastic bottom.

I'm trying to put together a complete rig for a byf 42. I'm in the process of purchasing a black bottom fxo eagle 37 from Legacy Collectables.

I'm also in the market for an appropriate Mauser made Luger tool, if anyone here would happen to have one for sale, or know who has one for sale.

Thinking about an appropriate holster too, but that's further in the future.