sigma 50-150 soft case

I bought Sigma 50-150, but seller misplaced the soft case when he moved recently. Does anyone have it and don't need it?

It seems that better approach would be if someone who owns Sigma 50-150 look for the padded case tag inside, found on a white label. For instance, my Sigma 10-20 case tag is LS-432F, so something similar should be for 50-150. Then I will have easier job to find one used online.

My case has a tag LS-512F - good luck with your search

Thank you very much!