Its fake! masteron amps have this sign on the amp but I have never seen real Organon products with this sign on the amp!!! Moreover your deca is fake also I guess. At least I can see the difference between the real deal old vials ans the vials on your pisture. if you deca is fake its the best fake I have ever seen but your sus is SHIT !!!! Sorry man, perhaps I`m wrong about your deca but this sust is fake, thats for sure!
Find my pics of Deca-durabolin on this board, there is a huge difference in labels.