Being a member of this forum, including the use of this subforum to bring the Alembic you want to sell under the attention of the best target group you could wish for, is a privilege and not a right (for me, for you, for anyone here).
If you've only joined this forum to sell a bass, and it hasn't got a logo, is only said to have a provenance and if you asking price is about what a new one would cost, you risk critical questions being asked.
To sell things with less unpleasant strings attached, but to a far less specific target group, there's eBay, craigslist etc. You win some, you lose some...
Wilfred