Used, 105 logo is mostly worn from top cup. Top dust seal is cracked lower is missing.
SHIMANO Shimano 105 HP-1050 1 Inch Threaded Headset
NIB/NOS Shimano 105 SC 1 Threaded Headset: HP-1055 - Bike Recyclery
Shimano 105 Headset - Bicycle Habitat NYC
New Old Stock Tagged shimano - Pedal Pedlar
SHIMANO 105 ALUMINIUM 1 Threaded Headset HP-1055 ISO Vintage Retro Road Bike £45.00 - PicClick UK
NOS SHIMANO DEORE XT HP-M735 1 INCH HEADSET THREADED VINTAGE OLD MTB MOUNTAIN
Vintage Bicycle Parts Tagged headset - Pedal Pedlar
NOS Campagnolo SYNCRO 2 7 speed / friction shifters
NOS NIB SHIMANO DURA ACE HP-7410 1 INCH HEADSET THREADED 90s VINTAGE OLD ROAD
Only $59.99! NIBDeore DX was Shimano's 2nd from top of the line directly under XT (until XTR was released in 1992). This group is highly sought after!
NIB/NOS Shimano 105 SC 1 Threaded Headset: HP-1055
NOS NIB SHIMANO XTR HP-M901 1+1/8 INCH HEADSET MTB THREADED 90s VINTAGE OLD
NOS NIB SHIMANO XTR HP-M901 1+1/8 INCH HEADSET MTB THREADED 90s VINTAGE OLD
Shimano 1 inch theaded headset, Model 105 SC hp-1055, New old stock, English size with 26.4 mm crown race, Stack / height 32.7 mm
Shimano 105 SC hp-1055 headset NOS 1 inch threaded
New Old Stock Tagged shimano - Pedal Pedlar