Micro Acoustics 630 & Shure V15 Type V-MR cartridges

Brand new to this site and admit I'm not very knowledable about this topic so forgive my ignorance. I recently aquired a Micro Acoustics 630 and a Shure V15 Type V-MR cartidge (in the original box and case) at a high end estate sale. I admittedly don't know squat about either other than that they are "vintage" and were/are considered to be high quality. I initailly purchased them for my son-in-law who I thought could use them but they are above his need level so I am looking to find new homes for them.

I have had a shop on eBay for many years but woud rather sell them directly to someone who would apprecate them. Any ideas on their value or where I might list them? Happy to answer questions/send photos. My email is  [email protected]   Thanks for yor help!  Mark