Martin SH 1 Taper-Lock QD Bushing Fits 1" Shaft      Made in USA
The mounting bolts are missing and are not in the box.
 
 
This is surplus to a now closed factory that kept spare parts on the shelf the boxes may show shelf wear and have some dust on them.
 

[Please Look at all the pictures they are part of the description]

                                                                                                             [B1-F1-R4-S1-3]