Would the ones here work?

 https://www.bagsunlimited.com/c-504-jewel-cases.aspx
> Date: Sat, 29 Mar 2014 18:20:50 -0400
> From: [log in to unmask]
> Subject: [ARSCLIST] SACD "jewel cases"
> To: [log in to unmask]
> 
> Where is a good place to get all-clear hard plastic SACD "jewel cases" like were used for the RCA 
> Living Stereo hybrid discs? I only need 10, maximum.
> 
> -- Tom Fine