Which propane tank are these? Need to replace.

Just found out myself that the tanks are 10 year Certification since Jan 2017. That made both of mine outdated. The problem I ran into in Delaware is finding someone to do this. After checking with 4 LP companies it appears LP dealers in Delaware no longer do certification. So I purchased 2 new tanks on ebay for $112. I like the 20 lb tank idea though camping in cool weather doesn't work for me.