I would need to download the images, resize them and carefully compare them to determine the relatives sizes of the emperor's
head, but the shape is different and so is the hair on the left
side. IMO, These are not partial die matches, just a
poor image of a very similar lead seal.
A partial die match can occur with re-engraved dies or altered molds. I saw one with the exact same
complete legend but different devices. (In general, be very careful with matching legends because small fragments may create false matches.)