Someone asked me to look at a collection his father had. Nothing too spectacular for US but one binder did contain several pages like these shown of line pairs of coil stamps. I don't really have any interests in coils. He was asking me what he could get for them.
For a private collector would offering him 50% of face value be an insult? Seems these bags of definitives go for 1/3 face now at shows by the bag/bucket/barrel. Are line pairs worth significantly more?