A guide price, not an offer
Jagex publishes one guide price a day, cached and rounded on its item page. Your buy or sell offer may fill above or below it.
Jagex Grand Exchange · Miscellaneous

This fin looks sharp like a blade. It could be lethal if combined with a superior long bone, volcanic fragments and some dinosaur scales.
MembersItem 48005
Key art: Jagex, play.runescape.com
Move along the chart to read a day. Values in gp, from the official Jagex price guide.
Jagex publishes one guide price a day, cached and rounded on its item page. Your buy or sell offer may fill above or below it.
The official price guide does not say how many were traded. A margin without volume is not a margin, so this page does not show one.
Open it on the official Grand Exchange . Browse more in the catalogue.