Dont know the history on this as far as chain wear, looking by eye id say the outer ring looks as if it's the most use, others don't appear excessively worn.
Sachs 7 Speed Freewheel 12-21t ISO English & Italian fit
SACHS 5 SPEED FREEWHEEL 15 TO 32 TOOTH 1980`s - TEST RIDDEN ONLY - NO WEAR
TOOL Park Freewheel Remover - FR-1.3 Shimano Sunrace Sachs
SACHS EY W7, 31-21T, 6 Speed Freewheel, 1.37 x 24, English Thread, 1980s Vintage
Reconditioned 24" Rear 6sp Alloy Mountain Bike Wheel Inc Tyre/Tube Silver
Maillard Spidel 1970s Front Quick Release Skewer 90-100mm Vintage Road Bike
