We might hold off on using these measurements for a bit, though as Ric mentioned, the can Earhart holds may have a different label and may have been purchased at some stop along the way, and may contain a metric volume of material instead, thus possibly making the can slightly different in size. I asked the seller for dimensions of the Mobile grease can I found earlier, but note that it is now sold, but am still holding out hope that he will send us the exact dimensions of that, before he ships it to it's new owner.
See below for the full frame of the photo. What's going on in this picture? They're in Darwin, Australia - the last "real place" before the long hop to Howland. It seems safe to assume that they're either off-loading stuff to leave in Darwin or they're loading stuff aboard that has been acquired in Darwin. Two parachutes, a bottle of nitrogen for servicing the landing gear struts, a spare tail wheel, a control yoke, a can of tomato juice (on the cabin floor), a "paint can" style can of lubricant on the ground, and the Mobilubricant can AE is holding. "Last Flight" says she left the parachutes in Darwin but press accounts by journalists who were there say she picked up two parachutes that had been shipped to her in Darwin. Also, off-loading full cans of lubricant she might need in servicing the aircraft in Lae doesn't make sense, so it looks like this is all stuff she has acquired in Darwin.
Metric? When did Australia go metric? I can read "lbs" on the can of lubricant on the ground.
The new owner of the eBay can is none other than Jeff Glickman. Jeff will use the can to recreate the exact angle seen in the photo so that he can give Dr. Jantz an accurate measurement of AE's arm for comparison to the castaway's arm bones.
Jeff is not looking forward to explaining to his wife why he bought an ancient, rusty can half full of grease.