Original surplus M10A1 filters. These fit a number of WWII-era gas masks and continued to be used with the M25 and M25A1 tanker gas masks well into the 1990's with the US military. Cans are beat up and dirty from long term storage. Expect dents, dirt, and possibly light rust. All cans will have their keys attached. Great for completing a display mask you have without the filter.
Not recommended for actual use as the filter material is likely degraded and may contain chromium.
