The Bullseye can is probably full as the seal has never been broken.
Thinking the 2400 can is older than the other Hercules cans as those styles were used to appox. 1970. Labeling varied over the years.
The 700X can was used as late as the 1980's when Dupont sold the powder Co. to IMR. The logo changed but the tin can remained for a few more years, collector value is doubtful.
