first, hello to all and thanks to all for this site and all the enthusiasm(sp).
I have an old 73 H16

and was checking the rigging the other day prior to setting out and found my jib block in total disarray

.It's set up like this; From tang going down about a foot to a triangle w/ a block built in and then the for stay continues down to the bridle,the block handles the jib halyard, It's just a brass wheel and its center is oval'd out

is this OEM or some other mfgrand is this part available???
thankx