Nice to see that you have the sensitivity to ask first, since some boards forbid this. There is no rule that I'm aware of on MTO against this, and we see it from time to time.
So I'd say, yes, let's see what you have and hopefully some experts can give you a rough idea of what it's worth. One thing I will mention is that prices/values here on MTO tend to be much lower than the often-inflated values you might see for the same thing on eBay. So if you go to eBay, get an idea of value, then come here and post it for sale for that price, your FS post might not get a lot of interest.
Good luck,
Myron