You maybe right, their is barnicles on the anchor so assumed it was used as a anchor. I can't find any info on the net about bronze anchors except it was used by the navy on minesweepers and their is a few cast iron anchors of the same shape[email protected]
Dirigo folding anchor (or a similar copy). I have a galvanized one that's pictured below from the 1880's to 1920's. Picked it up at a flea market and it was in my sailboat until last spring (now in my cellar).
Still a great anchor for rock and weed or as a storm spare. I don't recall seeing a bronze one!
Mine is identical to the one below -
It's worth a couple hundred $ for practical use. No idea how collectible that version may be.