I'm cleaning out a long closed Western Ma. luthier shops inventory  and will be selling a lifetime collection of mostly vintage musical instruments and parts. Today I have  what I believe to be a  Martin D-18 bridge . It is made of Brazilian rosewood.  This  was in a baggie marked " CFM 1960's D size" . It hasn't been shaved in any way. The saddle is still in the slot and has a chip out of it.  The  bridge bottom is flat and the little bit of spruce shows that it was cleanly removed. This is for project guitar parts ,or for a vintage guitar restoration guy.  A Martin guitar expert has told me that Martin guitars  used these bridges until about 1972. They stopped building  Brazilian bodies in 1969.  Maybe this seems expensive , but it is genuine vintage Martin. If you buy a Brazilian blank $20  figure out how to cut the angled slot for the saddle, drill 6 evenly spaced  bridge pin holes and then  cut out the shape and carve the correct profile. You will have considerable time invested, and the results ?

Please look at all the photos. This is a used guitar part.  Please note I am not a vintage guitar expert and I am going mostly from notes left on the  items.  There are NO returns. ASK questions, and LOOK at the photos. Any input is appreciated,  Check out my feedback and my other sales.  Please feel free to ask any and all questions. Shipping will be $9  fully insured  in the lower 48 I will combine shipping on items that will fit in one package.