N.B.: I'm not the original author, I took the script from https://greasyfork.org/en/scripts/5194-amazon-camel-graph and fixed it since it was not working and the author don't answer to request.
This will add a CamelCamelCamel price history graphs to Amazon product pages right above the price.
If you want to change the size of the Camel graph, edit the "width" and "height" variables.
The script shows both the Amazon and 3rd Party New graphs by default. If you want to change it to show only Amazon prices, change the variable "chart" to "amazon", but on items that Amazon doesn't no graph will be displayed. On product pages where CamelCamelCamel has not started tracking the price for the chart type you have selected, the graph will be hidden.
To change the location of the chart change "averageCustomerReviewsfeaturediv" to the ID of the div you want the graph to be placed after.
This also removes Camel referral links on Camel pages and shortens the Amazon URL for the current product page.