I am not certain that these are Merriman but that is the closest I can come to determining the maker with a trident for a mark.  This auction is for five turnbuckles.  All of the removed ends were swaged fittings.  All of these have a toggle/clevis on one end.  The three larger ones have a 5 inch long body and the screw is about 5/16ths.  The clevis pin is also 5/16ths.  The other two appear to be about 1/4 inch turnbuckles.  The body is 4 1/2 inches long and the screws are about 1/4 inch.  The one on the extreme right appears to be a little bent just below the toggle.  To the best of my knowledge, all the turnbuckles are stainless steel.  They are all used but have plenty of mechanical life left.