Hi there, I have been incredibly fortunate to have been gifted an old Czech flat back bass. All solid wood, real inlayed purfling, top hat pegs, what seems to be ebonite fingerboard? It’s super lightweight and has an amazingly present and lively tone to it. I’m having trouble figuring out from what time period it comes—so maybe these pictures will help someone who knows more than myself with the specifics of this instruments history. Bonus points for the make/model of the A string—feels like a wound gut, has purple after length and pegbox colors. TIA!