The style and shape of this vase is consistent with German solifleurs of the 70s, and I see it regularly being offered on ebay.de, but that's all I can say of origin. I've suspected Walther glass so far, they made the most different shapes and the mix of surface structure reminds me of other Walther pieces. The only thing that makes me doubt it is that the colour of the crystal (probably) is so greyish, more than other Walther pressed crystal block vases.
I haven't seen any block vases that were marked Friedrich so far, and I haven't seen any sold with that name attached either. It wouldn't be impossible that they jumped on the solifleur bandwagon in the 70s there's just nothing around to point in that direction.
Do you have any reason why you're thinking of that company? I could always use more info on German glass...
This topic should probably be moved. It's certainly not Czech. I'm 95% sure it belongs in German glass.
Astrid