Nana's Meerschaum Pipe

Pop-Pop was a great craftsman and appraiser. Unfortunately, he was not a great investor and lost it all on some bad stock decisions before he passed. Nana is nearly out of money and I'm helping her go through Pop's collection of treasures to try and pay the bills. While I'm not selling this yet, I'm hoping to find some insight on how best to describe her Meerschaum pipe. From what I can tell, it's in good condition and has the original case. I can't tell if the "stem?" has been replaced or if it's ever been smoked... which seems to help determine value. I know there are professional appraisers out there who could help but I'm doing my best to put that money into Nana's pocket instead. Any insight would be great. Any keen insights out there? Thanks collectors and happy treasure hunting!